Finding the Third Proportional to 20,215.13 and 31,808.25

Step by Step Solution

1. Step 1: Write the proportion equation
   20,215.13 : 31,808.25 = 31,808.25 : x
2. Step 2: Convert to fraction form
   20,215.13/31,808.25 = 31,808.25/x
3. Step 3: Cross multiply
   20,215.13x = 31,808.25 × 31,808.25
4. Step 4: Simplify right side
   20,215.13x = 1,011,764,768.06
5. Step 5: Solve for x
   x = 1,011,764,768.06/20,215.13
6. Step 6: Final answer
   x = 50,049.89