Finding the Third Proportional to 191,064 and 404,888

Step by Step Solution

1. Step 1: Write the proportion equation
   191,064 : 404,888 = 404,888 : x
2. Step 2: Convert to fraction form
   191,064/404,888 = 404,888/x
3. Step 3: Cross multiply
   191,064x = 404,888 × 404,888
4. Step 4: Simplify right side
   191,064x = 163,934,292,544
5. Step 5: Solve for x
   x = 163,934,292,544/191,064
6. Step 6: Final answer
   x = 858,007.23