Finding the Third Proportional to 237,728.50 and 518,105

Step by Step Solution

1. Step 1: Write the proportion equation
   237,728.50 : 518,105 = 518,105 : x
2. Step 2: Convert to fraction form
   237,728.50/518,105 = 518,105/x
3. Step 3: Cross multiply
   237,728.50x = 518,105 × 518,105
4. Step 4: Simplify right side
   237,728.50x = 268,432,791,025
5. Step 5: Solve for x
   x = 268,432,791,025/237,728.50
6. Step 6: Final answer
   x = 1,129,156.96