Finding the Third Proportional to 59,434.50 and 129,531

Step by Step Solution

1. Step 1: Write the proportion equation
   59,434.50 : 129,531 = 129,531 : x
2. Step 2: Convert to fraction form
   59,434.50/129,531 = 129,531/x
3. Step 3: Cross multiply
   59,434.50x = 129,531 × 129,531
4. Step 4: Simplify right side
   59,434.50x = 16,778,279,961
5. Step 5: Solve for x
   x = 16,778,279,961/59,434.50
6. Step 6: Final answer
   x = 282,298.66