Finding the Third Proportional to 17,864 and 20,456

Step by Step Solution

1. Step 1: Write the proportion equation
   17,864 : 20,456 = 20,456 : x
2. Step 2: Convert to fraction form
   17,864/20,456 = 20,456/x
3. Step 3: Cross multiply
   17,864x = 20,456 × 20,456
4. Step 4: Simplify right side
   17,864x = 418,447,936
5. Step 5: Solve for x
   x = 418,447,936/17,864
6. Step 6: Final answer
   x = 23,424.09