Finding the Third Proportional to 1,490 and 3,603.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,490 : 3,603.50 = 3,603.50 : x
2. Step 2: Convert to fraction form
   1,490/3,603.50 = 3,603.50/x
3. Step 3: Cross multiply
   1,490x = 3,603.50 × 3,603.50
4. Step 4: Simplify right side
   1,490x = 12,985,212.25
5. Step 5: Solve for x
   x = 12,985,212.25/1,490
6. Step 6: Final answer
   x = 8,714.91