Finding the Third Proportional to 424,475 and 603,502.50

Step by Step Solution

1. Step 1: Write the proportion equation
   424,475 : 603,502.50 = 603,502.50 : x
2. Step 2: Convert to fraction form
   424,475/603,502.50 = 603,502.50/x
3. Step 3: Cross multiply
   424,475x = 603,502.50 × 603,502.50
4. Step 4: Simplify right side
   424,475x = 364,215,267,506.25
5. Step 5: Solve for x
   x = 364,215,267,506.25/424,475
6. Step 6: Final answer
   x = 858,037.03