Finding the Third Proportional to 238,470.50 and 518,356.50

Step by Step Solution

1. Step 1: Write the proportion equation
   238,470.50 : 518,356.50 = 518,356.50 : x
2. Step 2: Convert to fraction form
   238,470.50/518,356.50 = 518,356.50/x
3. Step 3: Cross multiply
   238,470.50x = 518,356.50 × 518,356.50
4. Step 4: Simplify right side
   238,470.50x = 268,693,461,092.25
5. Step 5: Solve for x
   x = 268,693,461,092.25/238,470.50
6. Step 6: Final answer
   x = 1,126,736.69