Finding the Third Proportional to 20,128.50 and 31,341.94

Step by Step Solution

1. Step 1: Write the proportion equation
   20,128.50 : 31,341.94 = 31,341.94 : x
2. Step 2: Convert to fraction form
   20,128.50/31,341.94 = 31,341.94/x
3. Step 3: Cross multiply
   20,128.50x = 31,341.94 × 31,341.94
4. Step 4: Simplify right side
   20,128.50x = 982,317,046.25
5. Step 5: Solve for x
   x = 982,317,046.25/20,128.50
6. Step 6: Final answer
   x = 48,802.30