Finding the Third Proportional to 20,391.75 and 31,028.06

Step by Step Solution

1. Step 1: Write the proportion equation
   20,391.75 : 31,028.06 = 31,028.06 : x
2. Step 2: Convert to fraction form
   20,391.75/31,028.06 = 31,028.06/x
3. Step 3: Cross multiply
   20,391.75x = 31,028.06 × 31,028.06
4. Step 4: Simplify right side
   20,391.75x = 962,740,662.50
5. Step 5: Solve for x
   x = 962,740,662.50/20,391.75
6. Step 6: Final answer
   x = 47,212.26