Finding the Third Proportional to 15,876 and 21,546

Step by Step Solution

1. Step 1: Write the proportion equation
   15,876 : 21,546 = 21,546 : x
2. Step 2: Convert to fraction form
   15,876/21,546 = 21,546/x
3. Step 3: Cross multiply
   15,876x = 21,546 × 21,546
4. Step 4: Simplify right side
   15,876x = 464,230,116
5. Step 5: Solve for x
   x = 464,230,116/15,876
6. Step 6: Final answer
   x = 29,241