Finding the Third Proportional to 681,728 and 1,009,468

Step by Step Solution

1. Step 1: Write the proportion equation
   681,728 : 1,009,468 = 1,009,468 : x
2. Step 2: Convert to fraction form
   681,728/1,009,468 = 1,009,468/x
3. Step 3: Cross multiply
   681,728x = 1,009,468 × 1,009,468
4. Step 4: Simplify right side
   681,728x = 1,019,025,643,024
5. Step 5: Solve for x
   x = 1,019,025,643,024/681,728
6. Step 6: Final answer
   x = 1,494,768.65