Finding the Third Proportional to 57,240.50 and 125,900

Step by Step Solution

1. Step 1: Write the proportion equation
   57,240.50 : 125,900 = 125,900 : x
2. Step 2: Convert to fraction form
   57,240.50/125,900 = 125,900/x
3. Step 3: Cross multiply
   57,240.50x = 125,900 × 125,900
4. Step 4: Simplify right side
   57,240.50x = 15,850,810,000
5. Step 5: Solve for x
   x = 15,850,810,000/57,240.50
6. Step 6: Final answer
   x = 276,915.99