Finding the Third Proportional to 6,640 and 13,981

Step by Step Solution

1. Step 1: Write the proportion equation
   6,640 : 13,981 = 13,981 : x
2. Step 2: Convert to fraction form
   6,640/13,981 = 13,981/x
3. Step 3: Cross multiply
   6,640x = 13,981 × 13,981
4. Step 4: Simplify right side
   6,640x = 195,468,361
5. Step 5: Solve for x
   x = 195,468,361/6,640
6. Step 6: Final answer
   x = 29,438.01