Finding the Third Proportional to 57,856 and 87,510

Step by Step Solution

1. Step 1: Write the proportion equation
   57,856 : 87,510 = 87,510 : x
2. Step 2: Convert to fraction form
   57,856/87,510 = 87,510/x
3. Step 3: Cross multiply
   57,856x = 87,510 × 87,510
4. Step 4: Simplify right side
   57,856x = 7,658,000,100
5. Step 5: Solve for x
   x = 7,658,000,100/57,856
6. Step 6: Final answer
   x = 132,363.11