Finding the Third Proportional to 1,660.50 and 3,515.06

Step by Step Solution

1. Step 1: Write the proportion equation
   1,660.50 : 3,515.06 = 3,515.06 : x
2. Step 2: Convert to fraction form
   1,660.50/3,515.06 = 3,515.06/x
3. Step 3: Cross multiply
   1,660.50x = 3,515.06 × 3,515.06
4. Step 4: Simplify right side
   1,660.50x = 12,355,664.38
5. Step 5: Solve for x
   x = 12,355,664.38/1,660.50
6. Step 6: Final answer
   x = 7,440.93