Finding the Third Proportional to 328,082 and 715,456

Step by Step Solution

1. Step 1: Write the proportion equation
   328,082 : 715,456 = 715,456 : x
2. Step 2: Convert to fraction form
   328,082/715,456 = 715,456/x
3. Step 3: Cross multiply
   328,082x = 715,456 × 715,456
4. Step 4: Simplify right side
   328,082x = 511,877,287,936
5. Step 5: Solve for x
   x = 511,877,287,936/328,082
6. Step 6: Final answer
   x = 1,560,211.43