Finding the Third Proportional to 10,857 and 23,145

Step by Step Solution

1. Step 1: Write the proportion equation
   10,857 : 23,145 = 23,145 : x
2. Step 2: Convert to fraction form
   10,857/23,145 = 23,145/x
3. Step 3: Cross multiply
   10,857x = 23,145 × 23,145
4. Step 4: Simplify right side
   10,857x = 535,691,025
5. Step 5: Solve for x
   x = 535,691,025/10,857
6. Step 6: Final answer
   x = 49,340.61