Finding the Third Proportional to 59,970 and 87,651

Step by Step Solution

1. Step 1: Write the proportion equation
   59,970 : 87,651 = 87,651 : x
2. Step 2: Convert to fraction form
   59,970/87,651 = 87,651/x
3. Step 3: Cross multiply
   59,970x = 87,651 × 87,651
4. Step 4: Simplify right side
   59,970x = 7,682,697,801
5. Step 5: Solve for x
   x = 7,682,697,801/59,970
6. Step 6: Final answer
   x = 128,109.02