Finding the Third Proportional to 109,008.28 and 231,036.05

Step by Step Solution

1. Step 1: Write the proportion equation
   109,008.28 : 231,036.05 = 231,036.05 : x
2. Step 2: Convert to fraction form
   109,008.28/231,036.05 = 231,036.05/x
3. Step 3: Cross multiply
   109,008.28x = 231,036.05 × 231,036.05
4. Step 4: Simplify right side
   109,008.28x = 53,377,654,955.63
5. Step 5: Solve for x
   x = 53,377,654,955.63/109,008.28
6. Step 6: Final answer
   x = 489,666.05