Finding the Third Proportional to 144,317 and 214,936

Step by Step Solution

1. Step 1: Write the proportion equation
   144,317 : 214,936 = 214,936 : x
2. Step 2: Convert to fraction form
   144,317/214,936 = 214,936/x
3. Step 3: Cross multiply
   144,317x = 214,936 × 214,936
4. Step 4: Simplify right side
   144,317x = 46,197,484,096
5. Step 5: Solve for x
   x = 46,197,484,096/144,317
6. Step 6: Final answer
   x = 320,111.17