Finding the Third Proportional to 188,424 and 404,146

Step by Step Solution

1. Step 1: Write the proportion equation
   188,424 : 404,146 = 404,146 : x
2. Step 2: Convert to fraction form
   188,424/404,146 = 404,146/x
3. Step 3: Cross multiply
   188,424x = 404,146 × 404,146
4. Step 4: Simplify right side
   188,424x = 163,333,989,316
5. Step 5: Solve for x
   x = 163,333,989,316/188,424
6. Step 6: Final answer
   x = 866,842.81