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