Finding the Third Proportional to 647,966 and 1,439,749

Step by Step Solution

1. Step 1: Write the proportion equation
   647,966 : 1,439,749 = 1,439,749 : x
2. Step 2: Convert to fraction form
   647,966/1,439,749 = 1,439,749/x
3. Step 3: Cross multiply
   647,966x = 1,439,749 × 1,439,749
4. Step 4: Simplify right side
   647,966x = 2,072,877,183,001
5. Step 5: Solve for x
   x = 2,072,877,183,001/647,966
6. Step 6: Final answer
   x = 3,199,052.39