Finding the Third Proportional to 2,472.19 and 5,221.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,472.19 : 5,221.69 = 5,221.69 : x
2. Step 2: Convert to fraction form
   2,472.19/5,221.69 = 5,221.69/x
3. Step 3: Cross multiply
   2,472.19x = 5,221.69 × 5,221.69
4. Step 4: Simplify right side
   2,472.19x = 27,266,020.35
5. Step 5: Solve for x
   x = 27,266,020.35/2,472.19
6. Step 6: Final answer
   x = 11,029.11