Finding the Third Proportional to 5,469 and 10,249.50

Step by Step Solution

1. Step 1: Write the proportion equation
   5,469 : 10,249.50 = 10,249.50 : x
2. Step 2: Convert to fraction form
   5,469/10,249.50 = 10,249.50/x
3. Step 3: Cross multiply
   5,469x = 10,249.50 × 10,249.50
4. Step 4: Simplify right side
   5,469x = 105,052,250.25
5. Step 5: Solve for x
   x = 105,052,250.25/5,469
6. Step 6: Final answer
   x = 19,208.68