Finding the Third Proportional to 3,643,988 and 7,974,424

Step by Step Solution

1. Step 1: Write the proportion equation
   3,643,988 : 7,974,424 = 7,974,424 : x
2. Step 2: Convert to fraction form
   3,643,988/7,974,424 = 7,974,424/x
3. Step 3: Cross multiply
   3,643,988x = 7,974,424 × 7,974,424
4. Step 4: Simplify right side
   3,643,988x = 63,591,438,131,776
5. Step 5: Solve for x
   x = 63,591,438,131,776/3,643,988
6. Step 6: Final answer
   x = 17,451,055.86