Finding the Third Proportional to 20,563.50 and 42,741.75

Step by Step Solution

1. Step 1: Write the proportion equation
   20,563.50 : 42,741.75 = 42,741.75 : x
2. Step 2: Convert to fraction form
   20,563.50/42,741.75 = 42,741.75/x
3. Step 3: Cross multiply
   20,563.50x = 42,741.75 × 42,741.75
4. Step 4: Simplify right side
   20,563.50x = 1,826,857,193.06
5. Step 5: Solve for x
   x = 1,826,857,193.06/20,563.50
6. Step 6: Final answer
   x = 88,839.80