Finding the Third Proportional to 20,238.29 and 28,308.55

Step by Step Solution

1. Step 1: Write the proportion equation
   20,238.29 : 28,308.55 = 28,308.55 : x
2. Step 2: Convert to fraction form
   20,238.29/28,308.55 = 28,308.55/x
3. Step 3: Cross multiply
   20,238.29x = 28,308.55 × 28,308.55
4. Step 4: Simplify right side
   20,238.29x = 801,374,047.33
5. Step 5: Solve for x
   x = 801,374,047.33/20,238.29
6. Step 6: Final answer
   x = 39,596.92