Finding the Third Proportional to 80,518.50 and 174,911

Step by Step Solution

1. Step 1: Write the proportion equation
   80,518.50 : 174,911 = 174,911 : x
2. Step 2: Convert to fraction form
   80,518.50/174,911 = 174,911/x
3. Step 3: Cross multiply
   80,518.50x = 174,911 × 174,911
4. Step 4: Simplify right side
   80,518.50x = 30,593,857,921
5. Step 5: Solve for x
   x = 30,593,857,921/80,518.50
6. Step 6: Final answer
   x = 379,960.60