Finding the Third Proportional to 59,916 and 87,708

Step by Step Solution

1. Step 1: Write the proportion equation
   59,916 : 87,708 = 87,708 : x
2. Step 2: Convert to fraction form
   59,916/87,708 = 87,708/x
3. Step 3: Cross multiply
   59,916x = 87,708 × 87,708
4. Step 4: Simplify right side
   59,916x = 7,692,693,264
5. Step 5: Solve for x
   x = 7,692,693,264/59,916
6. Step 6: Final answer
   x = 128,391.30