Finding the Third Proportional to 283,608 and 439,087.50

Step by Step Solution

1. Step 1: Write the proportion equation
   283,608 : 439,087.50 = 439,087.50 : x
2. Step 2: Convert to fraction form
   283,608/439,087.50 = 439,087.50/x
3. Step 3: Cross multiply
   283,608x = 439,087.50 × 439,087.50
4. Step 4: Simplify right side
   283,608x = 192,797,832,656.25
5. Step 5: Solve for x
   x = 192,797,832,656.25/283,608
6. Step 6: Final answer
   x = 679,803.93