Finding the Third Proportional to 12,196,458 and 17,957,451

Step by Step Solution

1. Step 1: Write the proportion equation
   12,196,458 : 17,957,451 = 17,957,451 : x
2. Step 2: Convert to fraction form
   12,196,458/17,957,451 = 17,957,451/x
3. Step 3: Cross multiply
   12,196,458x = 17,957,451 × 17,957,451
4. Step 4: Simplify right side
   12,196,458x = 322,470,046,417,401
5. Step 5: Solve for x
   x = 322,470,046,417,401/12,196,458
6. Step 6: Final answer
   x = 26,439,647.18