Finding the Third Proportional to 79,920 and 175,392

Step by Step Solution

1. Step 1: Write the proportion equation
   79,920 : 175,392 = 175,392 : x
2. Step 2: Convert to fraction form
   79,920/175,392 = 175,392/x
3. Step 3: Cross multiply
   79,920x = 175,392 × 175,392
4. Step 4: Simplify right side
   79,920x = 30,762,353,664
5. Step 5: Solve for x
   x = 30,762,353,664/79,920
6. Step 6: Final answer
   x = 384,914.34