Finding the Third Proportional to 269,665.50 and 599,188.50

Step by Step Solution

1. Step 1: Write the proportion equation
   269,665.50 : 599,188.50 = 599,188.50 : x
2. Step 2: Convert to fraction form
   269,665.50/599,188.50 = 599,188.50/x
3. Step 3: Cross multiply
   269,665.50x = 599,188.50 × 599,188.50
4. Step 4: Simplify right side
   269,665.50x = 359,026,858,532.25
5. Step 5: Solve for x
   x = 359,026,858,532.25/269,665.50
6. Step 6: Final answer
   x = 1,331,378.54