Finding the Third Proportional to 79,489.50 and 168,456

Step by Step Solution

1. Step 1: Write the proportion equation
   79,489.50 : 168,456 = 168,456 : x
2. Step 2: Convert to fraction form
   79,489.50/168,456 = 168,456/x
3. Step 3: Cross multiply
   79,489.50x = 168,456 × 168,456
4. Step 4: Simplify right side
   79,489.50x = 28,377,423,936
5. Step 5: Solve for x
   x = 28,377,423,936/79,489.50
6. Step 6: Final answer
   x = 356,995.88