Finding the Third Proportional to 1,223 and 1,959.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,223 : 1,959.50 = 1,959.50 : x
2. Step 2: Convert to fraction form
   1,223/1,959.50 = 1,959.50/x
3. Step 3: Cross multiply
   1,223x = 1,959.50 × 1,959.50
4. Step 4: Simplify right side
   1,223x = 3,839,640.25
5. Step 5: Solve for x
   x = 3,839,640.25/1,223
6. Step 6: Final answer
   x = 3,139.53