Finding the Third Proportional to 6,469 and 10,020.50

Step by Step Solution

1. Step 1: Write the proportion equation
   6,469 : 10,020.50 = 10,020.50 : x
2. Step 2: Convert to fraction form
   6,469/10,020.50 = 10,020.50/x
3. Step 3: Cross multiply
   6,469x = 10,020.50 × 10,020.50
4. Step 4: Simplify right side
   6,469x = 100,410,420.25
5. Step 5: Solve for x
   x = 100,410,420.25/6,469
6. Step 6: Final answer
   x = 15,521.78