Finding the Third Proportional to 327,040 and 439,500

Step by Step Solution

1. Step 1: Write the proportion equation
   327,040 : 439,500 = 439,500 : x
2. Step 2: Convert to fraction form
   327,040/439,500 = 439,500/x
3. Step 3: Cross multiply
   327,040x = 439,500 × 439,500
4. Step 4: Simplify right side
   327,040x = 193,160,250,000
5. Step 5: Solve for x
   x = 193,160,250,000/327,040
6. Step 6: Final answer
   x = 590,631.88