Finding the Third Proportional to 2,689.50 and 3,830.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,689.50 : 3,830.25 = 3,830.25 : x
2. Step 2: Convert to fraction form
   2,689.50/3,830.25 = 3,830.25/x
3. Step 3: Cross multiply
   2,689.50x = 3,830.25 × 3,830.25
4. Step 4: Simplify right side
   2,689.50x = 14,670,815.06
5. Step 5: Solve for x
   x = 14,670,815.06/2,689.50
6. Step 6: Final answer
   x = 5,454.85