Finding the Third Proportional to 20,500.50 and 30,021.75

Step by Step Solution

1. Step 1: Write the proportion equation
   20,500.50 : 30,021.75 = 30,021.75 : x
2. Step 2: Convert to fraction form
   20,500.50/30,021.75 = 30,021.75/x
3. Step 3: Cross multiply
   20,500.50x = 30,021.75 × 30,021.75
4. Step 4: Simplify right side
   20,500.50x = 901,305,473.06
5. Step 5: Solve for x
   x = 901,305,473.06/20,500.50
6. Step 6: Final answer
   x = 43,965.05