Finding the Third Proportional to 3,643,998 and 7,974,450

Step by Step Solution

1. Step 1: Write the proportion equation
   3,643,998 : 7,974,450 = 7,974,450 : x
2. Step 2: Convert to fraction form
   3,643,998/7,974,450 = 7,974,450/x
3. Step 3: Cross multiply
   3,643,998x = 7,974,450 × 7,974,450
4. Step 4: Simplify right side
   3,643,998x = 63,591,852,802,500
5. Step 5: Solve for x
   x = 63,591,852,802,500/3,643,998
6. Step 6: Final answer
   x = 17,451,121.76