Finding the Third Proportional to 21,728.50 and 30,993.75

Step by Step Solution

1. Step 1: Write the proportion equation
   21,728.50 : 30,993.75 = 30,993.75 : x
2. Step 2: Convert to fraction form
   21,728.50/30,993.75 = 30,993.75/x
3. Step 3: Cross multiply
   21,728.50x = 30,993.75 × 30,993.75
4. Step 4: Simplify right side
   21,728.50x = 960,612,539.06
5. Step 5: Solve for x
   x = 960,612,539.06/21,728.50
6. Step 6: Final answer
   x = 44,209.80