Finding the Third Proportional to 87,910 and 188,928

Step by Step Solution

1. Step 1: Write the proportion equation
   87,910 : 188,928 = 188,928 : x
2. Step 2: Convert to fraction form
   87,910/188,928 = 188,928/x
3. Step 3: Cross multiply
   87,910x = 188,928 × 188,928
4. Step 4: Simplify right side
   87,910x = 35,693,789,184
5. Step 5: Solve for x
   x = 35,693,789,184/87,910
6. Step 6: Final answer
   x = 406,026.50