Finding the Third Proportional to 82,389 and 179,880

Step by Step Solution

1. Step 1: Write the proportion equation
   82,389 : 179,880 = 179,880 : x
2. Step 2: Convert to fraction form
   82,389/179,880 = 179,880/x
3. Step 3: Cross multiply
   82,389x = 179,880 × 179,880
4. Step 4: Simplify right side
   82,389x = 32,356,814,400
5. Step 5: Solve for x
   x = 32,356,814,400/82,389
6. Step 6: Final answer
   x = 392,732.21