Finding the Third Proportional to 79,200 and 168,672

Step by Step Solution

1. Step 1: Write the proportion equation
   79,200 : 168,672 = 168,672 : x
2. Step 2: Convert to fraction form
   79,200/168,672 = 168,672/x
3. Step 3: Cross multiply
   79,200x = 168,672 × 168,672
4. Step 4: Simplify right side
   79,200x = 28,450,243,584
5. Step 5: Solve for x
   x = 28,450,243,584/79,200
6. Step 6: Final answer
   x = 359,220.25