Finding the Third Proportional to 8,871 and 12,417

Step by Step Solution

1. Step 1: Write the proportion equation
   8,871 : 12,417 = 12,417 : x
2. Step 2: Convert to fraction form
   8,871/12,417 = 12,417/x
3. Step 3: Cross multiply
   8,871x = 12,417 × 12,417
4. Step 4: Simplify right side
   8,871x = 154,181,889
5. Step 5: Solve for x
   x = 154,181,889/8,871
6. Step 6: Final answer
   x = 17,380.44