Finding the Third Proportional to 79,919 and 175,390

Step by Step Solution

1. Step 1: Write the proportion equation
   79,919 : 175,390 = 175,390 : x
2. Step 2: Convert to fraction form
   79,919/175,390 = 175,390/x
3. Step 3: Cross multiply
   79,919x = 175,390 × 175,390
4. Step 4: Simplify right side
   79,919x = 30,761,652,100
5. Step 5: Solve for x
   x = 30,761,652,100/79,919
6. Step 6: Final answer
   x = 384,910.37