Finding the Third Proportional to 264,757 and 399,571.50

Step by Step Solution

1. Step 1: Write the proportion equation
   264,757 : 399,571.50 = 399,571.50 : x
2. Step 2: Convert to fraction form
   264,757/399,571.50 = 399,571.50/x
3. Step 3: Cross multiply
   264,757x = 399,571.50 × 399,571.50
4. Step 4: Simplify right side
   264,757x = 159,657,383,612.25
5. Step 5: Solve for x
   x = 159,657,383,612.25/264,757
6. Step 6: Final answer
   x = 603,033.66