Finding the Third Proportional to 279,190 and 605,616.50

Step by Step Solution

1. Step 1: Write the proportion equation
   279,190 : 605,616.50 = 605,616.50 : x
2. Step 2: Convert to fraction form
   279,190/605,616.50 = 605,616.50/x
3. Step 3: Cross multiply
   279,190x = 605,616.50 × 605,616.50
4. Step 4: Simplify right side
   279,190x = 366,771,345,072.25
5. Step 5: Solve for x
   x = 366,771,345,072.25/279,190
6. Step 6: Final answer
   x = 1,313,698.00