Finding the Third Proportional to 6,826.78 and 12,043.69

Step by Step Solution

1. Step 1: Write the proportion equation
   6,826.78 : 12,043.69 = 12,043.69 : x
2. Step 2: Convert to fraction form
   6,826.78/12,043.69 = 12,043.69/x
3. Step 3: Cross multiply
   6,826.78x = 12,043.69 × 12,043.69
4. Step 4: Simplify right side
   6,826.78x = 145,050,408.60
5. Step 5: Solve for x
   x = 145,050,408.60/6,826.78
6. Step 6: Final answer
   x = 21,247.26