Finding the Third Proportional to 79,661 and 173,815

Step by Step Solution

1. Step 1: Write the proportion equation
   79,661 : 173,815 = 173,815 : x
2. Step 2: Convert to fraction form
   79,661/173,815 = 173,815/x
3. Step 3: Cross multiply
   79,661x = 173,815 × 173,815
4. Step 4: Simplify right side
   79,661x = 30,211,654,225
5. Step 5: Solve for x
   x = 30,211,654,225/79,661
6. Step 6: Final answer
   x = 379,252.76