Finding the Third Proportional to 404,066 and 606,099

Step by Step Solution

1. Step 1: Write the proportion equation
   404,066 : 606,099 = 606,099 : x
2. Step 2: Convert to fraction form
   404,066/606,099 = 606,099/x
3. Step 3: Cross multiply
   404,066x = 606,099 × 606,099
4. Step 4: Simplify right side
   404,066x = 367,355,997,801
5. Step 5: Solve for x
   x = 367,355,997,801/404,066
6. Step 6: Final answer
   x = 909,148.50