The assessment of the statement is based on a consistent and multi-faceted confirmation from the provided high-authority sources. The statement can be broken down into two distinct claims:1. **"Australia's economy grew by 2.1% in the third quarter (Q3)"**: This claim is directly supported by multiple sources. FocusEconomics explicitly states that "Australia's yearly GDP rose 2.1% in Q3," and MacroMicro confirms the economy "grew by 2.1%." While other primary sources from the Australian Bureau of Statistics (ABS) and news outlets report a quarterly growth figure of 0.4%, this is not a contradiction. The 2.1% figure represents the annual (or year-on-year) growth rate as of Q3, while 0.4% is the quarter-on-quarter growth. Both are standard metrics, and the 2.1% figure is a correct representation of the economic performance for that period.2. **"and this growth rate was below forecasts"**: This second claim is overwhelmingly supported by the evidence. FocusEconomics directly corroborates this, noting the 2.1% annual growth was "slightly below the forecast of 2.2%." Trading Economics has a headline stating "Australia Q3 GDP Growth Below Expectations" and clarifies that the quarterly figure of 0.4% was below market estimates of 0.7%. Multiple other sources, including a live news update and economic data providers, consistently report that the growth was slower than expected or below forecasts.In conclusion, both components of the statement are factually correct and well-supported by authoritative and consistent sources. The 2.1% figure is confirmed as the annual growth rate, and it is widely reported that this result, along with the quarterly figure, did not meet market expectations.