Finding the Third Proportional to 59,920 and 87,714

Step by Step Solution

1. Step 1: Write the proportion equation
   59,920 : 87,714 = 87,714 : x
2. Step 2: Convert to fraction form
   59,920/87,714 = 87,714/x
3. Step 3: Cross multiply
   59,920x = 87,714 × 87,714
4. Step 4: Simplify right side
   59,920x = 7,693,745,796
5. Step 5: Solve for x
   x = 7,693,745,796/59,920
6. Step 6: Final answer
   x = 128,400.30