Finding the Third Proportional to 1,011 and 1,200

Step by Step Solution

1. Step 1: Write the proportion equation
   1,011 : 1,200 = 1,200 : x
2. Step 2: Convert to fraction form
   1,011/1,200 = 1,200/x
3. Step 3: Cross multiply
   1,011x = 1,200 × 1,200
4. Step 4: Simplify right side
   1,011x = 1,440,000
5. Step 5: Solve for x
   x = 1,440,000/1,011
6. Step 6: Final answer
   x = 1,424.33