Finding the Third Proportional to 12,945.75 and 26,717.25

Step by Step Solution

1. Step 1: Write the proportion equation
   12,945.75 : 26,717.25 = 26,717.25 : x
2. Step 2: Convert to fraction form
   12,945.75/26,717.25 = 26,717.25/x
3. Step 3: Cross multiply
   12,945.75x = 26,717.25 × 26,717.25
4. Step 4: Simplify right side
   12,945.75x = 713,811,447.56
5. Step 5: Solve for x
   x = 713,811,447.56/12,945.75
6. Step 6: Final answer
   x = 55,138.67