Finding the Third Proportional to 1,488.75 and 3,603.38

Step by Step Solution

1. Step 1: Write the proportion equation
   1,488.75 : 3,603.38 = 3,603.38 : x
2. Step 2: Convert to fraction form
   1,488.75/3,603.38 = 3,603.38/x
3. Step 3: Cross multiply
   1,488.75x = 3,603.38 × 3,603.38
4. Step 4: Simplify right side
   1,488.75x = 12,984,311.39
5. Step 5: Solve for x
   x = 12,984,311.39/1,488.75
6. Step 6: Final answer
   x = 8,721.62