Finding the Third Proportional to 59,427 and 87,372

Step by Step Solution

1. Step 1: Write the proportion equation
   59,427 : 87,372 = 87,372 : x
2. Step 2: Convert to fraction form
   59,427/87,372 = 87,372/x
3. Step 3: Cross multiply
   59,427x = 87,372 × 87,372
4. Step 4: Simplify right side
   59,427x = 7,633,866,384
5. Step 5: Solve for x
   x = 7,633,866,384/59,427
6. Step 6: Final answer
   x = 128,457.88