Finding the Third Proportional to 19,892 and 42,519

Step by Step Solution

1. Step 1: Write the proportion equation
   19,892 : 42,519 = 42,519 : x
2. Step 2: Convert to fraction form
   19,892/42,519 = 42,519/x
3. Step 3: Cross multiply
   19,892x = 42,519 × 42,519
4. Step 4: Simplify right side
   19,892x = 1,807,865,361
5. Step 5: Solve for x
   x = 1,807,865,361/19,892
6. Step 6: Final answer
   x = 90,884.04