To convert the height of Ali's farmhouse from meters to centimeters, we can use the conversion factor that 1 meter is equal to 100 centimeters.
Given:
Height in meters = \( 2.307 \times 10^8 \) meters
To convert this to centimeters:
\[ \text{Height in centimeters} = 2.307 \times 10^8 , \text{meters} \times 100 , \text{centimeters/meter} \]
\[ = 2.307 \times 10^8 \times 10^2 , \text{centimeters} \]
\[ = 2.307 \times 10^{10} , \text{centimeters} \]
Therefore, the height of Ali's farmhouse in centimeters is:
\[ \boxed{2.307 \times 10^{10}} \text{ centimeters} \]