Finding the Third Proportional to 613,664 and 1,338,892

Step by Step Solution

1. Step 1: Write the proportion equation
   613,664 : 1,338,892 = 1,338,892 : x
2. Step 2: Convert to fraction form
   613,664/1,338,892 = 1,338,892/x
3. Step 3: Cross multiply
   613,664x = 1,338,892 × 1,338,892
4. Step 4: Simplify right side
   613,664x = 1,792,631,787,664
5. Step 5: Solve for x
   x = 1,792,631,787,664/613,664
6. Step 6: Final answer
   x = 2,921,194.31