Finding the Third Proportional to 12,524 and 20,878

Step by Step Solution

1. Step 1: Write the proportion equation
   12,524 : 20,878 = 20,878 : x
2. Step 2: Convert to fraction form
   12,524/20,878 = 20,878/x
3. Step 3: Cross multiply
   12,524x = 20,878 × 20,878
4. Step 4: Simplify right side
   12,524x = 435,890,884
5. Step 5: Solve for x
   x = 435,890,884/12,524
6. Step 6: Final answer
   x = 34,804.45