Finding the Third Proportional to 20,160.50 and 31,786.50

Step by Step Solution

1. Step 1: Write the proportion equation
   20,160.50 : 31,786.50 = 31,786.50 : x
2. Step 2: Convert to fraction form
   20,160.50/31,786.50 = 31,786.50/x
3. Step 3: Cross multiply
   20,160.50x = 31,786.50 × 31,786.50
4. Step 4: Simplify right side
   20,160.50x = 1,010,381,582.25
5. Step 5: Solve for x
   x = 1,010,381,582.25/20,160.50
6. Step 6: Final answer
   x = 50,116.89