Finding the Third Proportional to 1,336.50 and 1,485

Step by Step Solution

1. Step 1: Write the proportion equation
   1,336.50 : 1,485 = 1,485 : x
2. Step 2: Convert to fraction form
   1,336.50/1,485 = 1,485/x
3. Step 3: Cross multiply
   1,336.50x = 1,485 × 1,485
4. Step 4: Simplify right side
   1,336.50x = 2,205,225
5. Step 5: Solve for x
   x = 2,205,225/1,336.50
6. Step 6: Final answer
   x = 1,650