Finding the Third Proportional to 728,376 and 1,142,607

Step by Step Solution

1. Step 1: Write the proportion equation
   728,376 : 1,142,607 = 1,142,607 : x
2. Step 2: Convert to fraction form
   728,376/1,142,607 = 1,142,607/x
3. Step 3: Cross multiply
   728,376x = 1,142,607 × 1,142,607
4. Step 4: Simplify right side
   728,376x = 1,305,550,756,449
5. Step 5: Solve for x
   x = 1,305,550,756,449/728,376
6. Step 6: Final answer
   x = 1,792,413.20