Finding the Third Proportional to 1,112.06 and 1,269.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,112.06 : 1,269.56 = 1,269.56 : x
2. Step 2: Convert to fraction form
   1,112.06/1,269.56 = 1,269.56/x
3. Step 3: Cross multiply
   1,112.06x = 1,269.56 × 1,269.56
4. Step 4: Simplify right side
   1,112.06x = 1,611,788.94
5. Step 5: Solve for x
   x = 1,611,788.94/1,112.06
6. Step 6: Final answer
   x = 1,449.37