Finding the Third Proportional to 404,918 and 604,089

Step by Step Solution

1. Step 1: Write the proportion equation
   404,918 : 604,089 = 604,089 : x
2. Step 2: Convert to fraction form
   404,918/604,089 = 604,089/x
3. Step 3: Cross multiply
   404,918x = 604,089 × 604,089
4. Step 4: Simplify right side
   404,918x = 364,923,519,921
5. Step 5: Solve for x
   x = 364,923,519,921/404,918
6. Step 6: Final answer
   x = 901,228.20