Finding the Third Proportional to 21,992 and 42,904

Step by Step Solution

1. Step 1: Write the proportion equation
   21,992 : 42,904 = 42,904 : x
2. Step 2: Convert to fraction form
   21,992/42,904 = 42,904/x
3. Step 3: Cross multiply
   21,992x = 42,904 × 42,904
4. Step 4: Simplify right side
   21,992x = 1,840,753,216
5. Step 5: Solve for x
   x = 1,840,753,216/21,992
6. Step 6: Final answer
   x = 83,701.04