Finding the Third Proportional to 1,311.19 and 2,017.41

Step by Step Solution

1. Step 1: Write the proportion equation
   1,311.19 : 2,017.41 = 2,017.41 : x
2. Step 2: Convert to fraction form
   1,311.19/2,017.41 = 2,017.41/x
3. Step 3: Cross multiply
   1,311.19x = 2,017.41 × 2,017.41
4. Step 4: Simplify right side
   1,311.19x = 4,069,927.98
5. Step 5: Solve for x
   x = 4,069,927.98/1,311.19
6. Step 6: Final answer
   x = 3,104.00