Finding the Third Proportional to 20,381.50 and 31,365.50

Step by Step Solution

1. Step 1: Write the proportion equation
   20,381.50 : 31,365.50 = 31,365.50 : x
2. Step 2: Convert to fraction form
   20,381.50/31,365.50 = 31,365.50/x
3. Step 3: Cross multiply
   20,381.50x = 31,365.50 × 31,365.50
4. Step 4: Simplify right side
   20,381.50x = 983,794,590.25
5. Step 5: Solve for x
   x = 983,794,590.25/20,381.50
6. Step 6: Final answer
   x = 48,269.00