Finding the Third Proportional to 483,485 and 679,651.50

Step by Step Solution

1. Step 1: Write the proportion equation
   483,485 : 679,651.50 = 679,651.50 : x
2. Step 2: Convert to fraction form
   483,485/679,651.50 = 679,651.50/x
3. Step 3: Cross multiply
   483,485x = 679,651.50 × 679,651.50
4. Step 4: Simplify right side
   483,485x = 461,926,161,452.25
5. Step 5: Solve for x
   x = 461,926,161,452.25/483,485
6. Step 6: Final answer
   x = 955,409.50