Finding the Third Proportional to 167,578 and 359,144

Step by Step Solution

1. Step 1: Write the proportion equation
   167,578 : 359,144 = 359,144 : x
2. Step 2: Convert to fraction form
   167,578/359,144 = 359,144/x
3. Step 3: Cross multiply
   167,578x = 359,144 × 359,144
4. Step 4: Simplify right side
   167,578x = 128,984,412,736
5. Step 5: Solve for x
   x = 128,984,412,736/167,578
6. Step 6: Final answer
   x = 769,697.77