Finding the Third Proportional to 219,608 and 479,372

Step by Step Solution

1. Step 1: Write the proportion equation
   219,608 : 479,372 = 479,372 : x
2. Step 2: Convert to fraction form
   219,608/479,372 = 479,372/x
3. Step 3: Cross multiply
   219,608x = 479,372 × 479,372
4. Step 4: Simplify right side
   219,608x = 229,797,514,384
5. Step 5: Solve for x
   x = 229,797,514,384/219,608
6. Step 6: Final answer
   x = 1,046,398.65