Finding the Third Proportional to 744.50 and 1,110.50

Step by Step Solution

1. Step 1: Write the proportion equation
   744.50 : 1,110.50 = 1,110.50 : x
2. Step 2: Convert to fraction form
   744.50/1,110.50 = 1,110.50/x
3. Step 3: Cross multiply
   744.50x = 1,110.50 × 1,110.50
4. Step 4: Simplify right side
   744.50x = 1,233,210.25
5. Step 5: Solve for x
   x = 1,233,210.25/744.50
6. Step 6: Final answer
   x = 1,656.43