To convert the height from meters to centimeters, we use the conversion factor \(1 \text{ meter} = 100 \text{ centimeters}\).
Given the height of the farmhouse:
\[ 2.307 \times 10^8 \text{ meters} \]
We multiply by 100 to convert to centimeters:
\[ 2.307 \times 10^8 \text{ meters} \times 100 \text{ cm/meter} = 2.307 \times 10^8 \times 10^2 \text{ cm} \]
When multiplying powers of 10, we add the exponents:
\[ 2.307 \times 10^{8+2} \text{ cm} = 2.307 \times 10^{10} \text{ cm} \]
Thus, the height of Ali's farmhouse in centimeters is:
\[ \boxed{2.307 \times 10^{10}} \text{ centimeters} \]