Finding the Third Proportional to 3,643,993 and 7,974,435

Step by Step Solution

1. Step 1: Write the proportion equation
   3,643,993 : 7,974,435 = 7,974,435 : x
2. Step 2: Convert to fraction form
   3,643,993/7,974,435 = 7,974,435/x
3. Step 3: Cross multiply
   3,643,993x = 7,974,435 × 7,974,435
4. Step 4: Simplify right side
   3,643,993x = 63,591,613,569,225
5. Step 5: Solve for x
   x = 63,591,613,569,225/3,643,993
6. Step 6: Final answer
   x = 17,451,080.06