Finding the Third Proportional to 435,434 and 672,834

Step by Step Solution

1. Step 1: Write the proportion equation
   435,434 : 672,834 = 672,834 : x
2. Step 2: Convert to fraction form
   435,434/672,834 = 672,834/x
3. Step 3: Cross multiply
   435,434x = 672,834 × 672,834
4. Step 4: Simplify right side
   435,434x = 452,705,591,556
5. Step 5: Solve for x
   x = 452,705,591,556/435,434
6. Step 6: Final answer
   x = 1,039,665.23