Finding the Third Proportional to 3,564 and 5,518.50

Step by Step Solution

1. Step 1: Write the proportion equation
   3,564 : 5,518.50 = 5,518.50 : x
2. Step 2: Convert to fraction form
   3,564/5,518.50 = 5,518.50/x
3. Step 3: Cross multiply
   3,564x = 5,518.50 × 5,518.50
4. Step 4: Simplify right side
   3,564x = 30,453,842.25
5. Step 5: Solve for x
   x = 30,453,842.25/3,564
6. Step 6: Final answer
   x = 8,544.85