Finding the Third Proportional to 309,067.88 and 477,612

Step by Step Solution

1. Step 1: Write the proportion equation
   309,067.88 : 477,612 = 477,612 : x
2. Step 2: Convert to fraction form
   309,067.88/477,612 = 477,612/x
3. Step 3: Cross multiply
   309,067.88x = 477,612 × 477,612
4. Step 4: Simplify right side
   309,067.88x = 228,113,222,544
5. Step 5: Solve for x
   x = 228,113,222,544/309,067.88
6. Step 6: Final answer
   x = 738,068.37