Finding the Third Proportional to 2,215.69 and 5,227.03

Step by Step Solution

1. Step 1: Write the proportion equation
   2,215.69 : 5,227.03 = 5,227.03 : x
2. Step 2: Convert to fraction form
   2,215.69/5,227.03 = 5,227.03/x
3. Step 3: Cross multiply
   2,215.69x = 5,227.03 × 5,227.03
4. Step 4: Simplify right side
   2,215.69x = 27,321,855.69
5. Step 5: Solve for x
   x = 27,321,855.69/2,215.69
6. Step 6: Final answer
   x = 12,331.10