Finding the Third Proportional to 3,639.38 and 7,940.25

Step by Step Solution

1. Step 1: Write the proportion equation
   3,639.38 : 7,940.25 = 7,940.25 : x
2. Step 2: Convert to fraction form
   3,639.38/7,940.25 = 7,940.25/x
3. Step 3: Cross multiply
   3,639.38x = 7,940.25 × 7,940.25
4. Step 4: Simplify right side
   3,639.38x = 63,047,570.06
5. Step 5: Solve for x
   x = 63,047,570.06/3,639.38
6. Step 6: Final answer
   x = 17,323.74