Finding the Third Proportional to 7,981 and 12,751

Step by Step Solution

1. Step 1: Write the proportion equation
   7,981 : 12,751 = 12,751 : x
2. Step 2: Convert to fraction form
   7,981/12,751 = 12,751/x
3. Step 3: Cross multiply
   7,981x = 12,751 × 12,751
4. Step 4: Simplify right side
   7,981x = 162,588,001
5. Step 5: Solve for x
   x = 162,588,001/7,981
6. Step 6: Final answer
   x = 20,371.88