Finding the Third Proportional to 20,719.13 and 31,996.69

Step by Step Solution

1. Step 1: Write the proportion equation
   20,719.13 : 31,996.69 = 31,996.69 : x
2. Step 2: Convert to fraction form
   20,719.13/31,996.69 = 31,996.69/x
3. Step 3: Cross multiply
   20,719.13x = 31,996.69 × 31,996.69
4. Step 4: Simplify right side
   20,719.13x = 1,023,788,010.97
5. Step 5: Solve for x
   x = 1,023,788,010.97/20,719.13
6. Step 6: Final answer
   x = 49,412.70