Finding the Third Proportional to 144,918 and 309,095

Step by Step Solution

1. Step 1: Write the proportion equation
   144,918 : 309,095 = 309,095 : x
2. Step 2: Convert to fraction form
   144,918/309,095 = 309,095/x
3. Step 3: Cross multiply
   144,918x = 309,095 × 309,095
4. Step 4: Simplify right side
   144,918x = 95,539,719,025
5. Step 5: Solve for x
   x = 95,539,719,025/144,918
6. Step 6: Final answer
   x = 659,267.44