Finding the Third Proportional to 3,518 and 5,570.50

Step by Step Solution

1. Step 1: Write the proportion equation
   3,518 : 5,570.50 = 5,570.50 : x
2. Step 2: Convert to fraction form
   3,518/5,570.50 = 5,570.50/x
3. Step 3: Cross multiply
   3,518x = 5,570.50 × 5,570.50
4. Step 4: Simplify right side
   3,518x = 31,030,470.25
5. Step 5: Solve for x
   x = 31,030,470.25/3,518
6. Step 6: Final answer
   x = 8,820.49