Finding the Third Proportional to 8,981 and 12,855.50

Step by Step Solution

1. Step 1: Write the proportion equation
   8,981 : 12,855.50 = 12,855.50 : x
2. Step 2: Convert to fraction form
   8,981/12,855.50 = 12,855.50/x
3. Step 3: Cross multiply
   8,981x = 12,855.50 × 12,855.50
4. Step 4: Simplify right side
   8,981x = 165,263,880.25
5. Step 5: Solve for x
   x = 165,263,880.25/8,981
6. Step 6: Final answer
   x = 18,401.50