Finding the Third Proportional to 59,810.91 and 129,443.06

Step by Step Solution

1. Step 1: Write the proportion equation
   59,810.91 : 129,443.06 = 129,443.06 : x
2. Step 2: Convert to fraction form
   59,810.91/129,443.06 = 129,443.06/x
3. Step 3: Cross multiply
   59,810.91x = 129,443.06 × 129,443.06
4. Step 4: Simplify right side
   59,810.91x = 16,755,506,429.38
5. Step 5: Solve for x
   x = 16,755,506,429.38/59,810.91
6. Step 6: Final answer
   x = 280,141.32