Finding the Third Proportional to 931.50 and 1,227

Step by Step Solution

1. Step 1: Write the proportion equation
   931.50 : 1,227 = 1,227 : x
2. Step 2: Convert to fraction form
   931.50/1,227 = 1,227/x
3. Step 3: Cross multiply
   931.50x = 1,227 × 1,227
4. Step 4: Simplify right side
   931.50x = 1,505,529
5. Step 5: Solve for x
   x = 1,505,529/931.50
6. Step 6: Final answer
   x = 1,616.24