Finding the Third Proportional to 5,228.30 and 10,635.05

Step by Step Solution

1. Step 1: Write the proportion equation
   5,228.30 : 10,635.05 = 10,635.05 : x
2. Step 2: Convert to fraction form
   5,228.30/10,635.05 = 10,635.05/x
3. Step 3: Cross multiply
   5,228.30x = 10,635.05 × 10,635.05
4. Step 4: Simplify right side
   5,228.30x = 113,104,222.03
5. Step 5: Solve for x
   x = 113,104,222.03/5,228.30
6. Step 6: Final answer
   x = 21,633.09