Finding the Third Proportional to 404,074 and 606,111

Step by Step Solution

1. Step 1: Write the proportion equation
   404,074 : 606,111 = 606,111 : x
2. Step 2: Convert to fraction form
   404,074/606,111 = 606,111/x
3. Step 3: Cross multiply
   404,074x = 606,111 × 606,111
4. Step 4: Simplify right side
   404,074x = 367,370,544,321
5. Step 5: Solve for x
   x = 367,370,544,321/404,074
6. Step 6: Final answer
   x = 909,166.50