Finding the Third Proportional to 12,976.31 and 20,048.34

Step by Step Solution

1. Step 1: Write the proportion equation
   12,976.31 : 20,048.34 = 20,048.34 : x
2. Step 2: Convert to fraction form
   12,976.31/20,048.34 = 20,048.34/x
3. Step 3: Cross multiply
   12,976.31x = 20,048.34 × 20,048.34
4. Step 4: Simplify right side
   12,976.31x = 401,936,087.12
5. Step 5: Solve for x
   x = 401,936,087.12/12,976.31
6. Step 6: Final answer
   x = 30,974.60