Finding the Third Proportional to 19,876 and 42,799

Step by Step Solution

1. Step 1: Write the proportion equation
   19,876 : 42,799 = 42,799 : x
2. Step 2: Convert to fraction form
   19,876/42,799 = 42,799/x
3. Step 3: Cross multiply
   19,876x = 42,799 × 42,799
4. Step 4: Simplify right side
   19,876x = 1,831,754,401
5. Step 5: Solve for x
   x = 1,831,754,401/19,876
6. Step 6: Final answer
   x = 92,159.11