Finding the Third Proportional to 144,919.13 and 309,096

Step by Step Solution

1. Step 1: Write the proportion equation
   144,919.13 : 309,096 = 309,096 : x
2. Step 2: Convert to fraction form
   144,919.13/309,096 = 309,096/x
3. Step 3: Cross multiply
   144,919.13x = 309,096 × 309,096
4. Step 4: Simplify right side
   144,919.13x = 95,540,337,216
5. Step 5: Solve for x
   x = 95,540,337,216/144,919.13
6. Step 6: Final answer
   x = 659,266.59