Finding the Third Proportional to 12,976.73 and 20,040.12

Step by Step Solution

1. Step 1: Write the proportion equation
   12,976.73 : 20,040.12 = 20,040.12 : x
2. Step 2: Convert to fraction form
   12,976.73/20,040.12 = 20,040.12/x
3. Step 3: Cross multiply
   12,976.73x = 20,040.12 × 20,040.12
4. Step 4: Simplify right side
   12,976.73x = 401,606,296.89
5. Step 5: Solve for x
   x = 401,606,296.89/12,976.73
6. Step 6: Final answer
   x = 30,948.18