Finding the Third Proportional to 174,144.50 and 355,668

Step by Step Solution

1. Step 1: Write the proportion equation
   174,144.50 : 355,668 = 355,668 : x
2. Step 2: Convert to fraction form
   174,144.50/355,668 = 355,668/x
3. Step 3: Cross multiply
   174,144.50x = 355,668 × 355,668
4. Step 4: Simplify right side
   174,144.50x = 126,499,726,224
5. Step 5: Solve for x
   x = 126,499,726,224/174,144.50
6. Step 6: Final answer
   x = 726,406.67