Finding the Third Proportional to 239,854.50 and 555,336

Step by Step Solution

1. Step 1: Write the proportion equation
   239,854.50 : 555,336 = 555,336 : x
2. Step 2: Convert to fraction form
   239,854.50/555,336 = 555,336/x
3. Step 3: Cross multiply
   239,854.50x = 555,336 × 555,336
4. Step 4: Simplify right side
   239,854.50x = 308,398,072,896
5. Step 5: Solve for x
   x = 308,398,072,896/239,854.50
6. Step 6: Final answer
   x = 1,285,771.47