Finding the Third Proportional to 12,897 and 19,981

Step by Step Solution

1. Step 1: Write the proportion equation
   12,897 : 19,981 = 19,981 : x
2. Step 2: Convert to fraction form
   12,897/19,981 = 19,981/x
3. Step 3: Cross multiply
   12,897x = 19,981 × 19,981
4. Step 4: Simplify right side
   12,897x = 399,240,361
5. Step 5: Solve for x
   x = 399,240,361/12,897
6. Step 6: Final answer
   x = 30,956.06