Finding the Third Proportional to 447,084 and 676,404

Step by Step Solution

1. Step 1: Write the proportion equation
   447,084 : 676,404 = 676,404 : x
2. Step 2: Convert to fraction form
   447,084/676,404 = 676,404/x
3. Step 3: Cross multiply
   447,084x = 676,404 × 676,404
4. Step 4: Simplify right side
   447,084x = 457,522,371,216
5. Step 5: Solve for x
   x = 457,522,371,216/447,084
6. Step 6: Final answer
   x = 1,023,347.67