Finding the Third Proportional to 6,816.75 and 10,423.50

Step by Step Solution

1. Step 1: Write the proportion equation
   6,816.75 : 10,423.50 = 10,423.50 : x
2. Step 2: Convert to fraction form
   6,816.75/10,423.50 = 10,423.50/x
3. Step 3: Cross multiply
   6,816.75x = 10,423.50 × 10,423.50
4. Step 4: Simplify right side
   6,816.75x = 108,649,352.25
5. Step 5: Solve for x
   x = 108,649,352.25/6,816.75
6. Step 6: Final answer
   x = 15,938.59