Finding the Third Proportional to 423,435 and 658,480.50

Step by Step Solution

1. Step 1: Write the proportion equation
   423,435 : 658,480.50 = 658,480.50 : x
2. Step 2: Convert to fraction form
   423,435/658,480.50 = 658,480.50/x
3. Step 3: Cross multiply
   423,435x = 658,480.50 × 658,480.50
4. Step 4: Simplify right side
   423,435x = 433,596,568,880.25
5. Step 5: Solve for x
   x = 433,596,568,880.25/423,435
6. Step 6: Final answer
   x = 1,023,997.94