Finding the Third Proportional to 19,307 and 41,872

Step by Step Solution

1. Step 1: Write the proportion equation
   19,307 : 41,872 = 41,872 : x
2. Step 2: Convert to fraction form
   19,307/41,872 = 41,872/x
3. Step 3: Cross multiply
   19,307x = 41,872 × 41,872
4. Step 4: Simplify right side
   19,307x = 1,753,264,384
5. Step 5: Solve for x
   x = 1,753,264,384/19,307
6. Step 6: Final answer
   x = 90,809.78