Finding the Third Proportional to 191,088 and 404,955

Step by Step Solution

1. Step 1: Write the proportion equation
   191,088 : 404,955 = 404,955 : x
2. Step 2: Convert to fraction form
   191,088/404,955 = 404,955/x
3. Step 3: Cross multiply
   191,088x = 404,955 × 404,955
4. Step 4: Simplify right side
   191,088x = 163,988,552,025
5. Step 5: Solve for x
   x = 163,988,552,025/191,088
6. Step 6: Final answer
   x = 858,183.41