Finding the Third Proportional to 8,477 and 12,229

Step by Step Solution

1. Step 1: Write the proportion equation
   8,477 : 12,229 = 12,229 : x
2. Step 2: Convert to fraction form
   8,477/12,229 = 12,229/x
3. Step 3: Cross multiply
   8,477x = 12,229 × 12,229
4. Step 4: Simplify right side
   8,477x = 149,548,441
5. Step 5: Solve for x
   x = 149,548,441/8,477
6. Step 6: Final answer
   x = 17,641.67