Finding the Third Proportional to 647,481 and 1,423,446

Step by Step Solution

1. Step 1: Write the proportion equation
   647,481 : 1,423,446 = 1,423,446 : x
2. Step 2: Convert to fraction form
   647,481/1,423,446 = 1,423,446/x
3. Step 3: Cross multiply
   647,481x = 1,423,446 × 1,423,446
4. Step 4: Simplify right side
   647,481x = 2,026,198,514,916
5. Step 5: Solve for x
   x = 2,026,198,514,916/647,481
6. Step 6: Final answer
   x = 3,129,355.94