Finding the Third Proportional to 57,432 and 86,150

Step by Step Solution

1. Step 1: Write the proportion equation
   57,432 : 86,150 = 86,150 : x
2. Step 2: Convert to fraction form
   57,432/86,150 = 86,150/x
3. Step 3: Cross multiply
   57,432x = 86,150 × 86,150
4. Step 4: Simplify right side
   57,432x = 7,421,822,500
5. Step 5: Solve for x
   x = 7,421,822,500/57,432
6. Step 6: Final answer
   x = 129,228.00