Finding the Third Proportional to 404,180 and 606,270

Step by Step Solution

1. Step 1: Write the proportion equation
   404,180 : 606,270 = 606,270 : x
2. Step 2: Convert to fraction form
   404,180/606,270 = 606,270/x
3. Step 3: Cross multiply
   404,180x = 606,270 × 606,270
4. Step 4: Simplify right side
   404,180x = 367,563,312,900
5. Step 5: Solve for x
   x = 367,563,312,900/404,180
6. Step 6: Final answer
   x = 909,405