Finding the Third Proportional to 144,003 and 216,036

Step by Step Solution

1. Step 1: Write the proportion equation
   144,003 : 216,036 = 216,036 : x
2. Step 2: Convert to fraction form
   144,003/216,036 = 216,036/x
3. Step 3: Cross multiply
   144,003x = 216,036 × 216,036
4. Step 4: Simplify right side
   144,003x = 46,671,553,296
5. Step 5: Solve for x
   x = 46,671,553,296/144,003
6. Step 6: Final answer
   x = 324,101.26