Finding the Third Proportional to 239,905.50 and 555,384

Step by Step Solution

1. Step 1: Write the proportion equation
   239,905.50 : 555,384 = 555,384 : x
2. Step 2: Convert to fraction form
   239,905.50/555,384 = 555,384/x
3. Step 3: Cross multiply
   239,905.50x = 555,384 × 555,384
4. Step 4: Simplify right side
   239,905.50x = 308,451,387,456
5. Step 5: Solve for x
   x = 308,451,387,456/239,905.50
6. Step 6: Final answer
   x = 1,285,720.37