Finding the Third Proportional to 144,234 and 215,150

Step by Step Solution

1. Step 1: Write the proportion equation
   144,234 : 215,150 = 215,150 : x
2. Step 2: Convert to fraction form
   144,234/215,150 = 215,150/x
3. Step 3: Cross multiply
   144,234x = 215,150 × 215,150
4. Step 4: Simplify right side
   144,234x = 46,289,522,500
5. Step 5: Solve for x
   x = 46,289,522,500/144,234
6. Step 6: Final answer
   x = 320,933.50