Finding the Third Proportional to 300,018.94 and 404,129.25

Step by Step Solution

1. Step 1: Write the proportion equation
   300,018.94 : 404,129.25 = 404,129.25 : x
2. Step 2: Convert to fraction form
   300,018.94/404,129.25 = 404,129.25/x
3. Step 3: Cross multiply
   300,018.94x = 404,129.25 × 404,129.25
4. Step 4: Simplify right side
   300,018.94x = 163,320,450,705.56
5. Step 5: Solve for x
   x = 163,320,450,705.56/300,018.94
6. Step 6: Final answer
   x = 544,367.14