Finding the Third Proportional to 19,492 and 42,872

Step by Step Solution

1. Step 1: Write the proportion equation
   19,492 : 42,872 = 42,872 : x
2. Step 2: Convert to fraction form
   19,492/42,872 = 42,872/x
3. Step 3: Cross multiply
   19,492x = 42,872 × 42,872
4. Step 4: Simplify right side
   19,492x = 1,838,008,384
5. Step 5: Solve for x
   x = 1,838,008,384/19,492
6. Step 6: Final answer
   x = 94,295.53