Finding the Third Proportional to 239,364 and 354,424.50

Step by Step Solution

1. Step 1: Write the proportion equation
   239,364 : 354,424.50 = 354,424.50 : x
2. Step 2: Convert to fraction form
   239,364/354,424.50 = 354,424.50/x
3. Step 3: Cross multiply
   239,364x = 354,424.50 × 354,424.50
4. Step 4: Simplify right side
   239,364x = 125,616,726,200.25
5. Step 5: Solve for x
   x = 125,616,726,200.25/239,364
6. Step 6: Final answer
   x = 524,793.73