Finding the Third Proportional to 4,857 and 10,404.75

Step by Step Solution

1. Step 1: Write the proportion equation
   4,857 : 10,404.75 = 10,404.75 : x
2. Step 2: Convert to fraction form
   4,857/10,404.75 = 10,404.75/x
3. Step 3: Cross multiply
   4,857x = 10,404.75 × 10,404.75
4. Step 4: Simplify right side
   4,857x = 108,258,822.56
5. Step 5: Solve for x
   x = 108,258,822.56/4,857
6. Step 6: Final answer
   x = 22,289.24