Finding the Third Proportional to 355,676 and 632,404

Step by Step Solution

1. Step 1: Write the proportion equation
   355,676 : 632,404 = 632,404 : x
2. Step 2: Convert to fraction form
   355,676/632,404 = 632,404/x
3. Step 3: Cross multiply
   355,676x = 632,404 × 632,404
4. Step 4: Simplify right side
   355,676x = 399,934,819,216
5. Step 5: Solve for x
   x = 399,934,819,216/355,676
6. Step 6: Final answer
   x = 1,124,435.78