Finding the Third Proportional to 3,307.50 and 5,317.50

Step by Step Solution

1. Step 1: Write the proportion equation
   3,307.50 : 5,317.50 = 5,317.50 : x
2. Step 2: Convert to fraction form
   3,307.50/5,317.50 = 5,317.50/x
3. Step 3: Cross multiply
   3,307.50x = 5,317.50 × 5,317.50
4. Step 4: Simplify right side
   3,307.50x = 28,275,806.25
5. Step 5: Solve for x
   x = 28,275,806.25/3,307.50
6. Step 6: Final answer
   x = 8,549.00