Finding the Third Proportional to 6,826.50 and 10,521.56

Step by Step Solution

1. Step 1: Write the proportion equation
   6,826.50 : 10,521.56 = 10,521.56 : x
2. Step 2: Convert to fraction form
   6,826.50/10,521.56 = 10,521.56/x
3. Step 3: Cross multiply
   6,826.50x = 10,521.56 × 10,521.56
4. Step 4: Simplify right side
   6,826.50x = 110,703,277.44
5. Step 5: Solve for x
   x = 110,703,277.44/6,826.50
6. Step 6: Final answer
   x = 16,216.70