Finding the Third Proportional to 71,944.50 and 168,039

Step by Step Solution

1. Step 1: Write the proportion equation
   71,944.50 : 168,039 = 168,039 : x
2. Step 2: Convert to fraction form
   71,944.50/168,039 = 168,039/x
3. Step 3: Cross multiply
   71,944.50x = 168,039 × 168,039
4. Step 4: Simplify right side
   71,944.50x = 28,237,105,521
5. Step 5: Solve for x
   x = 28,237,105,521/71,944.50
6. Step 6: Final answer
   x = 392,484.56