Finding the Third Proportional to 3,643,992 and 7,974,434

Step by Step Solution

1. Step 1: Write the proportion equation
   3,643,992 : 7,974,434 = 7,974,434 : x
2. Step 2: Convert to fraction form
   3,643,992/7,974,434 = 7,974,434/x
3. Step 3: Cross multiply
   3,643,992x = 7,974,434 × 7,974,434
4. Step 4: Simplify right side
   3,643,992x = 63,591,597,620,356
5. Step 5: Solve for x
   x = 63,591,597,620,356/3,643,992
6. Step 6: Final answer
   x = 17,451,080.47