Finding the Third Proportional to 187,090 and 404,308

Step by Step Solution

1. Step 1: Write the proportion equation
   187,090 : 404,308 = 404,308 : x
2. Step 2: Convert to fraction form
   187,090/404,308 = 404,308/x
3. Step 3: Cross multiply
   187,090x = 404,308 × 404,308
4. Step 4: Simplify right side
   187,090x = 163,464,958,864
5. Step 5: Solve for x
   x = 163,464,958,864/187,090
6. Step 6: Final answer
   x = 873,723.66