Finding the Third Proportional to 1,490 and 3,260

Step by Step Solution

1. Step 1: Write the proportion equation
   1,490 : 3,260 = 3,260 : x
2. Step 2: Convert to fraction form
   1,490/3,260 = 3,260/x
3. Step 3: Cross multiply
   1,490x = 3,260 × 3,260
4. Step 4: Simplify right side
   1,490x = 10,627,600
5. Step 5: Solve for x
   x = 10,627,600/1,490
6. Step 6: Final answer
   x = 7,132.62