Finding the Third Proportional to 1,801.50 and 3,603

Step by Step Solution

1. Step 1: Write the proportion equation
   1,801.50 : 3,603 = 3,603 : x
2. Step 2: Convert to fraction form
   1,801.50/3,603 = 3,603/x
3. Step 3: Cross multiply
   1,801.50x = 3,603 × 3,603
4. Step 4: Simplify right side
   1,801.50x = 12,981,609
5. Step 5: Solve for x
   x = 12,981,609/1,801.50
6. Step 6: Final answer
   x = 7,206