Finding the Third Proportional to 12,399.75 and 27,141.75

Step by Step Solution

1. Step 1: Write the proportion equation
   12,399.75 : 27,141.75 = 27,141.75 : x
2. Step 2: Convert to fraction form
   12,399.75/27,141.75 = 27,141.75/x
3. Step 3: Cross multiply
   12,399.75x = 27,141.75 × 27,141.75
4. Step 4: Simplify right side
   12,399.75x = 736,674,593.06
5. Step 5: Solve for x
   x = 736,674,593.06/12,399.75
6. Step 6: Final answer
   x = 59,410.44