Finding the Third Proportional to 3,391,434 and 7,274,214

Step by Step Solution

1. Step 1: Write the proportion equation
   3,391,434 : 7,274,214 = 7,274,214 : x
2. Step 2: Convert to fraction form
   3,391,434/7,274,214 = 7,274,214/x
3. Step 3: Cross multiply
   3,391,434x = 7,274,214 × 7,274,214
4. Step 4: Simplify right side
   3,391,434x = 52,914,189,317,796
5. Step 5: Solve for x
   x = 52,914,189,317,796/3,391,434
6. Step 6: Final answer
   x = 15,602,305.49