Finding the Third Proportional to 8,162 and 12,487

Step by Step Solution

1. Step 1: Write the proportion equation
   8,162 : 12,487 = 12,487 : x
2. Step 2: Convert to fraction form
   8,162/12,487 = 12,487/x
3. Step 3: Cross multiply
   8,162x = 12,487 × 12,487
4. Step 4: Simplify right side
   8,162x = 155,925,169
5. Step 5: Solve for x
   x = 155,925,169/8,162
6. Step 6: Final answer
   x = 19,103.79