Finding the Third Proportional to 12,391,108 and 17,418,597

Step by Step Solution

1. Step 1: Write the proportion equation
   12,391,108 : 17,418,597 = 17,418,597 : x
2. Step 2: Convert to fraction form
   12,391,108/17,418,597 = 17,418,597/x
3. Step 3: Cross multiply
   12,391,108x = 17,418,597 × 17,418,597
4. Step 4: Simplify right side
   12,391,108x = 303,407,521,448,409
5. Step 5: Solve for x
   x = 303,407,521,448,409/12,391,108
6. Step 6: Final answer
   x = 24,485,907.27