Finding the Third Proportional to 9,086 and 12,210

Step by Step Solution

1. Step 1: Write the proportion equation
   9,086 : 12,210 = 12,210 : x
2. Step 2: Convert to fraction form
   9,086/12,210 = 12,210/x
3. Step 3: Cross multiply
   9,086x = 12,210 × 12,210
4. Step 4: Simplify right side
   9,086x = 149,084,100
5. Step 5: Solve for x
   x = 149,084,100/9,086
6. Step 6: Final answer
   x = 16,408.11