Finding the Third Proportional to 300,067 and 654,054

Step by Step Solution

1. Step 1: Write the proportion equation
   300,067 : 654,054 = 654,054 : x
2. Step 2: Convert to fraction form
   300,067/654,054 = 654,054/x
3. Step 3: Cross multiply
   300,067x = 654,054 × 654,054
4. Step 4: Simplify right side
   300,067x = 427,786,634,916
5. Step 5: Solve for x
   x = 427,786,634,916/300,067
6. Step 6: Final answer
   x = 1,425,637.06