Finding the Third Proportional to 2,198.81 and 5,067.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,198.81 : 5,067.56 = 5,067.56 : x
2. Step 2: Convert to fraction form
   2,198.81/5,067.56 = 5,067.56/x
3. Step 3: Cross multiply
   2,198.81x = 5,067.56 × 5,067.56
4. Step 4: Simplify right side
   2,198.81x = 25,680,189.69
5. Step 5: Solve for x
   x = 25,680,189.69/2,198.81
6. Step 6: Final answer
   x = 11,679.12