Finding the Third Proportional to 88,992 and 206,928

Step by Step Solution

1. Step 1: Write the proportion equation
   88,992 : 206,928 = 206,928 : x
2. Step 2: Convert to fraction form
   88,992/206,928 = 206,928/x
3. Step 3: Cross multiply
   88,992x = 206,928 × 206,928
4. Step 4: Simplify right side
   88,992x = 42,819,197,184
5. Step 5: Solve for x
   x = 42,819,197,184/88,992
6. Step 6: Final answer
   x = 481,157.83