Finding the Third Proportional to 3,909.38 and 5,529.94

Step by Step Solution

1. Step 1: Write the proportion equation
   3,909.38 : 5,529.94 = 5,529.94 : x
2. Step 2: Convert to fraction form
   3,909.38/5,529.94 = 5,529.94/x
3. Step 3: Cross multiply
   3,909.38x = 5,529.94 × 5,529.94
4. Step 4: Simplify right side
   3,909.38x = 30,580,208.75
5. Step 5: Solve for x
   x = 30,580,208.75/3,909.38
6. Step 6: Final answer
   x = 7,822.28