Finding the Third Proportional to 79,658.50 and 173,809

Step by Step Solution

1. Step 1: Write the proportion equation
   79,658.50 : 173,809 = 173,809 : x
2. Step 2: Convert to fraction form
   79,658.50/173,809 = 173,809/x
3. Step 3: Cross multiply
   79,658.50x = 173,809 × 173,809
4. Step 4: Simplify right side
   79,658.50x = 30,209,568,481
5. Step 5: Solve for x
   x = 30,209,568,481/79,658.50
6. Step 6: Final answer
   x = 379,238.48