Finding the Third Proportional to 1,617.25 and 2,245.75

Step by Step Solution

1. Step 1: Write the proportion equation
   1,617.25 : 2,245.75 = 2,245.75 : x
2. Step 2: Convert to fraction form
   1,617.25/2,245.75 = 2,245.75/x
3. Step 3: Cross multiply
   1,617.25x = 2,245.75 × 2,245.75
4. Step 4: Simplify right side
   1,617.25x = 5,043,393.06
5. Step 5: Solve for x
   x = 5,043,393.06/1,617.25
6. Step 6: Final answer
   x = 3,118.50