Finding the Third Proportional to 87,815 and 188,944

Step by Step Solution

1. Step 1: Write the proportion equation
   87,815 : 188,944 = 188,944 : x
2. Step 2: Convert to fraction form
   87,815/188,944 = 188,944/x
3. Step 3: Cross multiply
   87,815x = 188,944 × 188,944
4. Step 4: Simplify right side
   87,815x = 35,699,835,136
5. Step 5: Solve for x
   x = 35,699,835,136/87,815
6. Step 6: Final answer
   x = 406,534.59