Finding the Third Proportional to 20,589.75 and 41,908.50

Step by Step Solution

1. Step 1: Write the proportion equation
   20,589.75 : 41,908.50 = 41,908.50 : x
2. Step 2: Convert to fraction form
   20,589.75/41,908.50 = 41,908.50/x
3. Step 3: Cross multiply
   20,589.75x = 41,908.50 × 41,908.50
4. Step 4: Simplify right side
   20,589.75x = 1,756,322,372.25
5. Step 5: Solve for x
   x = 1,756,322,372.25/20,589.75
6. Step 6: Final answer
   x = 85,300.81