Finding the Third Proportional to 57,280 and 87,632

Step by Step Solution

1. Step 1: Write the proportion equation
   57,280 : 87,632 = 87,632 : x
2. Step 2: Convert to fraction form
   57,280/87,632 = 87,632/x
3. Step 3: Cross multiply
   57,280x = 87,632 × 87,632
4. Step 4: Simplify right side
   57,280x = 7,679,367,424
5. Step 5: Solve for x
   x = 7,679,367,424/57,280
6. Step 6: Final answer
   x = 134,067.17