Finding the Third Proportional to 2,119.72 and 3,118.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,119.72 : 3,118.18 = 3,118.18 : x
2. Step 2: Convert to fraction form
   2,119.72/3,118.18 = 3,118.18/x
3. Step 3: Cross multiply
   2,119.72x = 3,118.18 × 3,118.18
4. Step 4: Simplify right side
   2,119.72x = 9,723,068.92
5. Step 5: Solve for x
   x = 9,723,068.92/2,119.72
6. Step 6: Final answer
   x = 4,586.95