Finding the Third Proportional to 647,469 and 1,408,350

Step by Step Solution

1. Step 1: Write the proportion equation
   647,469 : 1,408,350 = 1,408,350 : x
2. Step 2: Convert to fraction form
   647,469/1,408,350 = 1,408,350/x
3. Step 3: Cross multiply
   647,469x = 1,408,350 × 1,408,350
4. Step 4: Simplify right side
   647,469x = 1,983,449,722,500
5. Step 5: Solve for x
   x = 1,983,449,722,500/647,469
6. Step 6: Final answer
   x = 3,063,389.48