Finding the Third Proportional to 479,544 and 720,538.50

Step by Step Solution

1. Step 1: Write the proportion equation
   479,544 : 720,538.50 = 720,538.50 : x
2. Step 2: Convert to fraction form
   479,544/720,538.50 = 720,538.50/x
3. Step 3: Cross multiply
   479,544x = 720,538.50 × 720,538.50
4. Step 4: Simplify right side
   479,544x = 519,175,729,982.25
5. Step 5: Solve for x
   x = 519,175,729,982.25/479,544
6. Step 6: Final answer
   x = 1,082,644.62