Finding the Third Proportional to 231,168 and 366,144

Step by Step Solution

1. Step 1: Write the proportion equation
   231,168 : 366,144 = 366,144 : x
2. Step 2: Convert to fraction form
   231,168/366,144 = 366,144/x
3. Step 3: Cross multiply
   231,168x = 366,144 × 366,144
4. Step 4: Simplify right side
   231,168x = 134,061,428,736
5. Step 5: Solve for x
   x = 134,061,428,736/231,168
6. Step 6: Final answer
   x = 579,930.74