Finding the Third Proportional to 449,650 and 677,443

Step by Step Solution

1. Step 1: Write the proportion equation
   449,650 : 677,443 = 677,443 : x
2. Step 2: Convert to fraction form
   449,650/677,443 = 677,443/x
3. Step 3: Cross multiply
   449,650x = 677,443 × 677,443
4. Step 4: Simplify right side
   449,650x = 458,929,018,249
5. Step 5: Solve for x
   x = 458,929,018,249/449,650
6. Step 6: Final answer
   x = 1,020,636.09