Finding the Third Proportional to 3,391,541 and 7,187,434

Step by Step Solution

1. Step 1: Write the proportion equation
   3,391,541 : 7,187,434 = 7,187,434 : x
2. Step 2: Convert to fraction form
   3,391,541/7,187,434 = 7,187,434/x
3. Step 3: Cross multiply
   3,391,541x = 7,187,434 × 7,187,434
4. Step 4: Simplify right side
   3,391,541x = 51,659,207,504,356
5. Step 5: Solve for x
   x = 51,659,207,504,356/3,391,541
6. Step 6: Final answer
   x = 15,231,780.33