Finding the Third Proportional to 20,119.75 and 31,851.50

Step by Step Solution

1. Step 1: Write the proportion equation
   20,119.75 : 31,851.50 = 31,851.50 : x
2. Step 2: Convert to fraction form
   20,119.75/31,851.50 = 31,851.50/x
3. Step 3: Cross multiply
   20,119.75x = 31,851.50 × 31,851.50
4. Step 4: Simplify right side
   20,119.75x = 1,014,518,052.25
5. Step 5: Solve for x
   x = 1,014,518,052.25/20,119.75
6. Step 6: Final answer
   x = 50,423.99