Finding the Third Proportional to 1,085.48 and 1,550.81

Step by Step Solution

1. Step 1: Write the proportion equation
   1,085.48 : 1,550.81 = 1,550.81 : x
2. Step 2: Convert to fraction form
   1,085.48/1,550.81 = 1,550.81/x
3. Step 3: Cross multiply
   1,085.48x = 1,550.81 × 1,550.81
4. Step 4: Simplify right side
   1,085.48x = 2,405,019.41
5. Step 5: Solve for x
   x = 2,405,019.41/1,085.48
6. Step 6: Final answer
   x = 2,215.62