Finding the Third Proportional to 328,104 and 715,500

Step by Step Solution

1. Step 1: Write the proportion equation
   328,104 : 715,500 = 715,500 : x
2. Step 2: Convert to fraction form
   328,104/715,500 = 715,500/x
3. Step 3: Cross multiply
   328,104x = 715,500 × 715,500
4. Step 4: Simplify right side
   328,104x = 511,940,250,000
5. Step 5: Solve for x
   x = 511,940,250,000/328,104
6. Step 6: Final answer
   x = 1,560,298.72