Finding the Third Proportional to 5,228.30 and 10,610.37

Step by Step Solution

1. Step 1: Write the proportion equation
   5,228.30 : 10,610.37 = 10,610.37 : x
2. Step 2: Convert to fraction form
   5,228.30/10,610.37 = 10,610.37/x
3. Step 3: Cross multiply
   5,228.30x = 10,610.37 × 10,610.37
4. Step 4: Simplify right side
   5,228.30x = 112,579,891.85
5. Step 5: Solve for x
   x = 112,579,891.85/5,228.30
6. Step 6: Final answer
   x = 21,532.80