Finding the Third Proportional to 10,981.50 and 16,857

Step by Step Solution

1. Step 1: Write the proportion equation
   10,981.50 : 16,857 = 16,857 : x
2. Step 2: Convert to fraction form
   10,981.50/16,857 = 16,857/x
3. Step 3: Cross multiply
   10,981.50x = 16,857 × 16,857
4. Step 4: Simplify right side
   10,981.50x = 284,158,449
5. Step 5: Solve for x
   x = 284,158,449/10,981.50
6. Step 6: Final answer
   x = 25,876.11