Finding the Third Proportional to 647,820 and 1,337,136

Step by Step Solution

1. Step 1: Write the proportion equation
   647,820 : 1,337,136 = 1,337,136 : x
2. Step 2: Convert to fraction form
   647,820/1,337,136 = 1,337,136/x
3. Step 3: Cross multiply
   647,820x = 1,337,136 × 1,337,136
4. Step 4: Simplify right side
   647,820x = 1,787,932,682,496
5. Step 5: Solve for x
   x = 1,787,932,682,496/647,820
6. Step 6: Final answer
   x = 2,759,922.02