Finding the Third Proportional to 19,724 and 42,904

Step by Step Solution

1. Step 1: Write the proportion equation
   19,724 : 42,904 = 42,904 : x
2. Step 2: Convert to fraction form
   19,724/42,904 = 42,904/x
3. Step 3: Cross multiply
   19,724x = 42,904 × 42,904
4. Step 4: Simplify right side
   19,724x = 1,840,753,216
5. Step 5: Solve for x
   x = 1,840,753,216/19,724
6. Step 6: Final answer
   x = 93,325.55