Finding the Third Proportional to 9,874 and 20,857

Step by Step Solution

1. Step 1: Write the proportion equation
   9,874 : 20,857 = 20,857 : x
2. Step 2: Convert to fraction form
   9,874/20,857 = 20,857/x
3. Step 3: Cross multiply
   9,874x = 20,857 × 20,857
4. Step 4: Simplify right side
   9,874x = 435,014,449
5. Step 5: Solve for x
   x = 435,014,449/9,874
6. Step 6: Final answer
   x = 44,056.56