Finding the Third Proportional to 1,220,728 and 2,651,616

Step by Step Solution

1. Step 1: Write the proportion equation
   1,220,728 : 2,651,616 = 2,651,616 : x
2. Step 2: Convert to fraction form
   1,220,728/2,651,616 = 2,651,616/x
3. Step 3: Cross multiply
   1,220,728x = 2,651,616 × 2,651,616
4. Step 4: Simplify right side
   1,220,728x = 7,031,067,411,456
5. Step 5: Solve for x
   x = 7,031,067,411,456/1,220,728
6. Step 6: Final answer
   x = 5,759,733.05