Finding the Third Proportional to 79,212 and 173,180

Step by Step Solution

1. Step 1: Write the proportion equation
   79,212 : 173,180 = 173,180 : x
2. Step 2: Convert to fraction form
   79,212/173,180 = 173,180/x
3. Step 3: Cross multiply
   79,212x = 173,180 × 173,180
4. Step 4: Simplify right side
   79,212x = 29,991,312,400
5. Step 5: Solve for x
   x = 29,991,312,400/79,212
6. Step 6: Final answer
   x = 378,620.82