Finding the Third Proportional to 12,994.13 and 20,112.19

Step by Step Solution

1. Step 1: Write the proportion equation
   12,994.13 : 20,112.19 = 20,112.19 : x
2. Step 2: Convert to fraction form
   12,994.13/20,112.19 = 20,112.19/x
3. Step 3: Cross multiply
   12,994.13x = 20,112.19 × 20,112.19
4. Step 4: Simplify right side
   12,994.13x = 404,500,086.04
5. Step 5: Solve for x
   x = 404,500,086.04/12,994.13
6. Step 6: Final answer
   x = 31,129.46