Finding the Third Proportional to 3,640.88 and 7,758.38

Step by Step Solution

1. Step 1: Write the proportion equation
   3,640.88 : 7,758.38 = 7,758.38 : x
2. Step 2: Convert to fraction form
   3,640.88/7,758.38 = 7,758.38/x
3. Step 3: Cross multiply
   3,640.88x = 7,758.38 × 7,758.38
4. Step 4: Simplify right side
   3,640.88x = 60,192,382.64
5. Step 5: Solve for x
   x = 60,192,382.64/3,640.88
6. Step 6: Final answer
   x = 16,532.39