Finding the Third Proportional to 2,086,616 and 4,397,406

Step by Step Solution

1. Step 1: Write the proportion equation
   2,086,616 : 4,397,406 = 4,397,406 : x
2. Step 2: Convert to fraction form
   2,086,616/4,397,406 = 4,397,406/x
3. Step 3: Cross multiply
   2,086,616x = 4,397,406 × 4,397,406
4. Step 4: Simplify right side
   2,086,616x = 19,337,179,528,836
5. Step 5: Solve for x
   x = 19,337,179,528,836/2,086,616
6. Step 6: Final answer
   x = 9,267,243.96