Finding the Third Proportional to 12,357 and 25,868.25

Step by Step Solution

1. Step 1: Write the proportion equation
   12,357 : 25,868.25 = 25,868.25 : x
2. Step 2: Convert to fraction form
   12,357/25,868.25 = 25,868.25/x
3. Step 3: Cross multiply
   12,357x = 25,868.25 × 25,868.25
4. Step 4: Simplify right side
   12,357x = 669,166,358.06
5. Step 5: Solve for x
   x = 669,166,358.06/12,357
6. Step 6: Final answer
   x = 54,152.82