Finding the Third Proportional to 20,178 and 33,345

Step by Step Solution

1. Step 1: Write the proportion equation
   20,178 : 33,345 = 33,345 : x
2. Step 2: Convert to fraction form
   20,178/33,345 = 33,345/x
3. Step 3: Cross multiply
   20,178x = 33,345 × 33,345
4. Step 4: Simplify right side
   20,178x = 1,111,889,025
5. Step 5: Solve for x
   x = 1,111,889,025/20,178
6. Step 6: Final answer
   x = 55,104.03