Finding the Third Proportional to 931,728 and 2,021,664

Step by Step Solution

1. Step 1: Write the proportion equation
   931,728 : 2,021,664 = 2,021,664 : x
2. Step 2: Convert to fraction form
   931,728/2,021,664 = 2,021,664/x
3. Step 3: Cross multiply
   931,728x = 2,021,664 × 2,021,664
4. Step 4: Simplify right side
   931,728x = 4,087,125,328,896
5. Step 5: Solve for x
   x = 4,087,125,328,896/931,728
6. Step 6: Final answer
   x = 4,386,607.82