Finding the Third Proportional to 188,424 and 404,148

Step by Step Solution

1. Step 1: Write the proportion equation
   188,424 : 404,148 = 404,148 : x
2. Step 2: Convert to fraction form
   188,424/404,148 = 404,148/x
3. Step 3: Cross multiply
   188,424x = 404,148 × 404,148
4. Step 4: Simplify right side
   188,424x = 163,335,605,904
5. Step 5: Solve for x
   x = 163,335,605,904/188,424
6. Step 6: Final answer
   x = 866,851.39