Finding the Third Proportional to 831,904 and 1,339,728

Step by Step Solution

1. Step 1: Write the proportion equation
   831,904 : 1,339,728 = 1,339,728 : x
2. Step 2: Convert to fraction form
   831,904/1,339,728 = 1,339,728/x
3. Step 3: Cross multiply
   831,904x = 1,339,728 × 1,339,728
4. Step 4: Simplify right side
   831,904x = 1,794,871,113,984
5. Step 5: Solve for x
   x = 1,794,871,113,984/831,904
6. Step 6: Final answer
   x = 2,157,545.96