Finding the Third Proportional to 239,362.50 and 518,616

Step by Step Solution

1. Step 1: Write the proportion equation
   239,362.50 : 518,616 = 518,616 : x
2. Step 2: Convert to fraction form
   239,362.50/518,616 = 518,616/x
3. Step 3: Cross multiply
   239,362.50x = 518,616 × 518,616
4. Step 4: Simplify right side
   239,362.50x = 268,962,555,456
5. Step 5: Solve for x
   x = 268,962,555,456/239,362.50
6. Step 6: Final answer
   x = 1,123,662.04