Finding the Third Proportional to 435,398 and 672,514

Step by Step Solution

1. Step 1: Write the proportion equation
   435,398 : 672,514 = 672,514 : x
2. Step 2: Convert to fraction form
   435,398/672,514 = 672,514/x
3. Step 3: Cross multiply
   435,398x = 672,514 × 672,514
4. Step 4: Simplify right side
   435,398x = 452,275,080,196
5. Step 5: Solve for x
   x = 452,275,080,196/435,398
6. Step 6: Final answer
   x = 1,038,762.42