Finding the Third Proportional to 404,321.63 and 613,863.56

Step by Step Solution

1. Step 1: Write the proportion equation
   404,321.63 : 613,863.56 = 613,863.56 : x
2. Step 2: Convert to fraction form
   404,321.63/613,863.56 = 613,863.56/x
3. Step 3: Cross multiply
   404,321.63x = 613,863.56 × 613,863.56
4. Step 4: Simplify right side
   404,321.63x = 376,828,473,365.19
5. Step 5: Solve for x
   x = 376,828,473,365.19/404,321.63
6. Step 6: Final answer
   x = 932,001.78