Finding the Third Proportional to 253,619 and 599,780.50

Step by Step Solution

1. Step 1: Write the proportion equation
   253,619 : 599,780.50 = 599,780.50 : x
2. Step 2: Convert to fraction form
   253,619/599,780.50 = 599,780.50/x
3. Step 3: Cross multiply
   253,619x = 599,780.50 × 599,780.50
4. Step 4: Simplify right side
   253,619x = 359,736,648,180.25
5. Step 5: Solve for x
   x = 359,736,648,180.25/253,619
6. Step 6: Final answer
   x = 1,418,413.64