Finding the Third Proportional to 20,238.75 and 30,456.19

Step by Step Solution

1. Step 1: Write the proportion equation
   20,238.75 : 30,456.19 = 30,456.19 : x
2. Step 2: Convert to fraction form
   20,238.75/30,456.19 = 30,456.19/x
3. Step 3: Cross multiply
   20,238.75x = 30,456.19 × 30,456.19
4. Step 4: Simplify right side
   20,238.75x = 927,579,357.04
5. Step 5: Solve for x
   x = 927,579,357.04/20,238.75
6. Step 6: Final answer
   x = 45,831.85