Finding the Third Proportional to 5,260.50 and 8,328.38

Step by Step Solution

1. Step 1: Write the proportion equation
   5,260.50 : 8,328.38 = 8,328.38 : x
2. Step 2: Convert to fraction form
   5,260.50/8,328.38 = 8,328.38/x
3. Step 3: Cross multiply
   5,260.50x = 8,328.38 × 8,328.38
4. Step 4: Simplify right side
   5,260.50x = 69,361,830.14
5. Step 5: Solve for x
   x = 69,361,830.14/5,260.50
6. Step 6: Final answer
   x = 13,185.41