Finding the Third Proportional to 9,105 and 18,981

Step by Step Solution

1. Step 1: Write the proportion equation
   9,105 : 18,981 = 18,981 : x
2. Step 2: Convert to fraction form
   9,105/18,981 = 18,981/x
3. Step 3: Cross multiply
   9,105x = 18,981 × 18,981
4. Step 4: Simplify right side
   9,105x = 360,278,361
5. Step 5: Solve for x
   x = 360,278,361/9,105
6. Step 6: Final answer
   x = 39,569.29