Finding the Third Proportional to 5,330.81 and 12,256.31

Step by Step Solution

1. Step 1: Write the proportion equation
   5,330.81 : 12,256.31 = 12,256.31 : x
2. Step 2: Convert to fraction form
   5,330.81/12,256.31 = 12,256.31/x
3. Step 3: Cross multiply
   5,330.81x = 12,256.31 × 12,256.31
4. Step 4: Simplify right side
   5,330.81x = 150,217,196.10
5. Step 5: Solve for x
   x = 150,217,196.10/5,330.81
6. Step 6: Final answer
   x = 28,179.04