Finding the Third Proportional to 239,365.50 and 354,426

Step by Step Solution

1. Step 1: Write the proportion equation
   239,365.50 : 354,426 = 354,426 : x
2. Step 2: Convert to fraction form
   239,365.50/354,426 = 354,426/x
3. Step 3: Cross multiply
   239,365.50x = 354,426 × 354,426
4. Step 4: Simplify right side
   239,365.50x = 125,617,789,476
5. Step 5: Solve for x
   x = 125,617,789,476/239,365.50
6. Step 6: Final answer
   x = 524,794.88