Finding the Third Proportional to 239,805 and 369,550.50

Step by Step Solution

1. Step 1: Write the proportion equation
   239,805 : 369,550.50 = 369,550.50 : x
2. Step 2: Convert to fraction form
   239,805/369,550.50 = 369,550.50/x
3. Step 3: Cross multiply
   239,805x = 369,550.50 × 369,550.50
4. Step 4: Simplify right side
   239,805x = 136,567,572,050.25
5. Step 5: Solve for x
   x = 136,567,572,050.25/239,805
6. Step 6: Final answer
   x = 569,494.26