Finding the Third Proportional to 300,115.50 and 650,055

Step by Step Solution

1. Step 1: Write the proportion equation
   300,115.50 : 650,055 = 650,055 : x
2. Step 2: Convert to fraction form
   300,115.50/650,055 = 650,055/x
3. Step 3: Cross multiply
   300,115.50x = 650,055 × 650,055
4. Step 4: Simplify right side
   300,115.50x = 422,571,503,025
5. Step 5: Solve for x
   x = 422,571,503,025/300,115.50
6. Step 6: Final answer
   x = 1,408,029.59