Finding the Third Proportional to 20,367.75 and 42,682.13

Step by Step Solution

1. Step 1: Write the proportion equation
   20,367.75 : 42,682.13 = 42,682.13 : x
2. Step 2: Convert to fraction form
   20,367.75/42,682.13 = 42,682.13/x
3. Step 3: Cross multiply
   20,367.75x = 42,682.13 × 42,682.13
4. Step 4: Simplify right side
   20,367.75x = 1,821,763,794.52
5. Step 5: Solve for x
   x = 1,821,763,794.52/20,367.75
6. Step 6: Final answer
   x = 89,443.55