Finding the Third Proportional to 3,647.50 and 5,515

Step by Step Solution

1. Step 1: Write the proportion equation
   3,647.50 : 5,515 = 5,515 : x
2. Step 2: Convert to fraction form
   3,647.50/5,515 = 5,515/x
3. Step 3: Cross multiply
   3,647.50x = 5,515 × 5,515
4. Step 4: Simplify right side
   3,647.50x = 30,415,225
5. Step 5: Solve for x
   x = 30,415,225/3,647.50
6. Step 6: Final answer
   x = 8,338.65