Finding the Third Proportional to 647,496 and 1,423,479

Step by Step Solution

1. Step 1: Write the proportion equation
   647,496 : 1,423,479 = 1,423,479 : x
2. Step 2: Convert to fraction form
   647,496/1,423,479 = 1,423,479/x
3. Step 3: Cross multiply
   647,496x = 1,423,479 × 1,423,479
4. Step 4: Simplify right side
   647,496x = 2,026,292,463,441
5. Step 5: Solve for x
   x = 2,026,292,463,441/647,496
6. Step 6: Final answer
   x = 3,129,428.54