Finding the Third Proportional to 1,603.50 and 2,418

Step by Step Solution

1. Step 1: Write the proportion equation
   1,603.50 : 2,418 = 2,418 : x
2. Step 2: Convert to fraction form
   1,603.50/2,418 = 2,418/x
3. Step 3: Cross multiply
   1,603.50x = 2,418 × 2,418
4. Step 4: Simplify right side
   1,603.50x = 5,846,724
5. Step 5: Solve for x
   x = 5,846,724/1,603.50
6. Step 6: Final answer
   x = 3,646.23