Finding the Third Proportional to 82,579.50 and 180,144

Step by Step Solution

1. Step 1: Write the proportion equation
   82,579.50 : 180,144 = 180,144 : x
2. Step 2: Convert to fraction form
   82,579.50/180,144 = 180,144/x
3. Step 3: Cross multiply
   82,579.50x = 180,144 × 180,144
4. Step 4: Simplify right side
   82,579.50x = 32,451,860,736
5. Step 5: Solve for x
   x = 32,451,860,736/82,579.50
6. Step 6: Final answer
   x = 392,977.20