Finding the Third Proportional to 12,391,107 and 17,418,595.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,391,107 : 17,418,595.50 = 17,418,595.50 : x
2. Step 2: Convert to fraction form
   12,391,107/17,418,595.50 = 17,418,595.50/x
3. Step 3: Cross multiply
   12,391,107x = 17,418,595.50 × 17,418,595.50
4. Step 4: Simplify right side
   12,391,107x = 303,407,469,192,620.25
5. Step 5: Solve for x
   x = 303,407,469,192,620.25/12,391,107
6. Step 6: Final answer
   x = 24,485,905.03