Finding the Third Proportional to 87,162 and 188,148

Step by Step Solution

1. Step 1: Write the proportion equation
   87,162 : 188,148 = 188,148 : x
2. Step 2: Convert to fraction form
   87,162/188,148 = 188,148/x
3. Step 3: Cross multiply
   87,162x = 188,148 × 188,148
4. Step 4: Simplify right side
   87,162x = 35,399,669,904
5. Step 5: Solve for x
   x = 35,399,669,904/87,162
6. Step 6: Final answer
   x = 406,136.50