Finding the Third Proportional to 8,107 and 12,109

Step by Step Solution

1. Step 1: Write the proportion equation
   8,107 : 12,109 = 12,109 : x
2. Step 2: Convert to fraction form
   8,107/12,109 = 12,109/x
3. Step 3: Cross multiply
   8,107x = 12,109 × 12,109
4. Step 4: Simplify right side
   8,107x = 146,627,881
5. Step 5: Solve for x
   x = 146,627,881/8,107
6. Step 6: Final answer
   x = 18,086.58