Finding the Third Proportional to 728,381 and 1,142,616

Step by Step Solution

1. Step 1: Write the proportion equation
   728,381 : 1,142,616 = 1,142,616 : x
2. Step 2: Convert to fraction form
   728,381/1,142,616 = 1,142,616/x
3. Step 3: Cross multiply
   728,381x = 1,142,616 × 1,142,616
4. Step 4: Simplify right side
   728,381x = 1,305,571,323,456
5. Step 5: Solve for x
   x = 1,305,571,323,456/728,381
6. Step 6: Final answer
   x = 1,792,429.13