Finding the Third Proportional to 324,879 and 500,005.50

Step by Step Solution

1. Step 1: Write the proportion equation
   324,879 : 500,005.50 = 500,005.50 : x
2. Step 2: Convert to fraction form
   324,879/500,005.50 = 500,005.50/x
3. Step 3: Cross multiply
   324,879x = 500,005.50 × 500,005.50
4. Step 4: Simplify right side
   324,879x = 250,005,500,030.25
5. Step 5: Solve for x
   x = 250,005,500,030.25/324,879
6. Step 6: Final answer
   x = 769,534.20