Finding the Third Proportional to 550,728 and 1,205,136

Step by Step Solution

1. Step 1: Write the proportion equation
   550,728 : 1,205,136 = 1,205,136 : x
2. Step 2: Convert to fraction form
   550,728/1,205,136 = 1,205,136/x
3. Step 3: Cross multiply
   550,728x = 1,205,136 × 1,205,136
4. Step 4: Simplify right side
   550,728x = 1,452,352,778,496
5. Step 5: Solve for x
   x = 1,452,352,778,496/550,728
6. Step 6: Final answer
   x = 2,637,150.79