Finding the Third Proportional to 80,518 and 173,436

Step by Step Solution

1. Step 1: Write the proportion equation
   80,518 : 173,436 = 173,436 : x
2. Step 2: Convert to fraction form
   80,518/173,436 = 173,436/x
3. Step 3: Cross multiply
   80,518x = 173,436 × 173,436
4. Step 4: Simplify right side
   80,518x = 30,080,046,096
5. Step 5: Solve for x
   x = 30,080,046,096/80,518
6. Step 6: Final answer
   x = 373,581.64