Finding the Third Proportional to 621,792 and 1,341,664

Step by Step Solution

1. Step 1: Write the proportion equation
   621,792 : 1,341,664 = 1,341,664 : x
2. Step 2: Convert to fraction form
   621,792/1,341,664 = 1,341,664/x
3. Step 3: Cross multiply
   621,792x = 1,341,664 × 1,341,664
4. Step 4: Simplify right side
   621,792x = 1,800,062,288,896
5. Step 5: Solve for x
   x = 1,800,062,288,896/621,792
6. Step 6: Final answer
   x = 2,894,958.91