Finding the Third Proportional to 435,394 and 672,508.50

Step by Step Solution

1. Step 1: Write the proportion equation
   435,394 : 672,508.50 = 672,508.50 : x
2. Step 2: Convert to fraction form
   435,394/672,508.50 = 672,508.50/x
3. Step 3: Cross multiply
   435,394x = 672,508.50 × 672,508.50
4. Step 4: Simplify right side
   435,394x = 452,267,682,572.25
5. Step 5: Solve for x
   x = 452,267,682,572.25/435,394
6. Step 6: Final answer
   x = 1,038,754.97