Finding the Third Proportional to 88,687 and 188,674

Step by Step Solution

1. Step 1: Write the proportion equation
   88,687 : 188,674 = 188,674 : x
2. Step 2: Convert to fraction form
   88,687/188,674 = 188,674/x
3. Step 3: Cross multiply
   88,687x = 188,674 × 188,674
4. Step 4: Simplify right side
   88,687x = 35,597,878,276
5. Step 5: Solve for x
   x = 35,597,878,276/88,687
6. Step 6: Final answer
   x = 401,387.78