Finding the Third Proportional to 8,878 and 19,345

Step by Step Solution

1. Step 1: Write the proportion equation
   8,878 : 19,345 = 19,345 : x
2. Step 2: Convert to fraction form
   8,878/19,345 = 19,345/x
3. Step 3: Cross multiply
   8,878x = 19,345 × 19,345
4. Step 4: Simplify right side
   8,878x = 374,229,025
5. Step 5: Solve for x
   x = 374,229,025/8,878
6. Step 6: Final answer
   x = 42,152.40