Finding the Third Proportional to 728,380 and 1,142,612

Step by Step Solution

1. Step 1: Write the proportion equation
   728,380 : 1,142,612 = 1,142,612 : x
2. Step 2: Convert to fraction form
   728,380/1,142,612 = 1,142,612/x
3. Step 3: Cross multiply
   728,380x = 1,142,612 × 1,142,612
4. Step 4: Simplify right side
   728,380x = 1,305,562,182,544
5. Step 5: Solve for x
   x = 1,305,562,182,544/728,380
6. Step 6: Final answer
   x = 1,792,419.04