Finding the Third Proportional to 57,689.96 and 87,331.92

Step by Step Solution

1. Step 1: Write the proportion equation
   57,689.96 : 87,331.92 = 87,331.92 : x
2. Step 2: Convert to fraction form
   57,689.96/87,331.92 = 87,331.92/x
3. Step 3: Cross multiply
   57,689.96x = 87,331.92 × 87,331.92
4. Step 4: Simplify right side
   57,689.96x = 7,626,864,578.38
5. Step 5: Solve for x
   x = 7,626,864,578.38/57,689.96
6. Step 6: Final answer
   x = 132,204.37