Finding the Third Proportional to 144,084 and 231,503

Step by Step Solution

1. Step 1: Write the proportion equation
   144,084 : 231,503 = 231,503 : x
2. Step 2: Convert to fraction form
   144,084/231,503 = 231,503/x
3. Step 3: Cross multiply
   144,084x = 231,503 × 231,503
4. Step 4: Simplify right side
   144,084x = 53,593,639,009
5. Step 5: Solve for x
   x = 53,593,639,009/144,084
6. Step 6: Final answer
   x = 371,961.07