Finding the Third Proportional to 79,720 and 167,700

Step by Step Solution

1. Step 1: Write the proportion equation
   79,720 : 167,700 = 167,700 : x
2. Step 2: Convert to fraction form
   79,720/167,700 = 167,700/x
3. Step 3: Cross multiply
   79,720x = 167,700 × 167,700
4. Step 4: Simplify right side
   79,720x = 28,123,290,000
5. Step 5: Solve for x
   x = 28,123,290,000/79,720
6. Step 6: Final answer
   x = 352,775.84