Finding the Third Proportional to 269,300.50 and 409,546.50

Step by Step Solution

1. Step 1: Write the proportion equation
   269,300.50 : 409,546.50 = 409,546.50 : x
2. Step 2: Convert to fraction form
   269,300.50/409,546.50 = 409,546.50/x
3. Step 3: Cross multiply
   269,300.50x = 409,546.50 × 409,546.50
4. Step 4: Simplify right side
   269,300.50x = 167,728,335,662.25
5. Step 5: Solve for x
   x = 167,728,335,662.25/269,300.50
6. Step 6: Final answer
   x = 622,829.65