Finding the Third Proportional to 144,917 and 309,094

Step by Step Solution

1. Step 1: Write the proportion equation
   144,917 : 309,094 = 309,094 : x
2. Step 2: Convert to fraction form
   144,917/309,094 = 309,094/x
3. Step 3: Cross multiply
   144,917x = 309,094 × 309,094
4. Step 4: Simplify right side
   144,917x = 95,539,100,836
5. Step 5: Solve for x
   x = 95,539,100,836/144,917
6. Step 6: Final answer
   x = 659,267.72