Finding the Third Proportional to 12,924.56 and 19,956.38

Step by Step Solution

1. Step 1: Write the proportion equation
   12,924.56 : 19,956.38 = 19,956.38 : x
2. Step 2: Convert to fraction form
   12,924.56/19,956.38 = 19,956.38/x
3. Step 3: Cross multiply
   12,924.56x = 19,956.38 × 19,956.38
4. Step 4: Simplify right side
   12,924.56x = 398,256,903.14
5. Step 5: Solve for x
   x = 398,256,903.14/12,924.56
6. Step 6: Final answer
   x = 30,813.96