Finding the Third Proportional to 12,679.88 and 27,228.38

Step by Step Solution

1. Step 1: Write the proportion equation
   12,679.88 : 27,228.38 = 27,228.38 : x
2. Step 2: Convert to fraction form
   12,679.88/27,228.38 = 27,228.38/x
3. Step 3: Cross multiply
   12,679.88x = 27,228.38 × 27,228.38
4. Step 4: Simplify right side
   12,679.88x = 741,384,405.14
5. Step 5: Solve for x
   x = 741,384,405.14/12,679.88
6. Step 6: Final answer
   x = 58,469.38