Finding the Third Proportional to 300,021 and 404,132

Step by Step Solution

1. Step 1: Write the proportion equation
   300,021 : 404,132 = 404,132 : x
2. Step 2: Convert to fraction form
   300,021/404,132 = 404,132/x
3. Step 3: Cross multiply
   300,021x = 404,132 × 404,132
4. Step 4: Simplify right side
   300,021x = 163,322,673,424
5. Step 5: Solve for x
   x = 163,322,673,424/300,021
6. Step 6: Final answer
   x = 544,370.81