Finding the Third Proportional to 20,176 and 42,755

Step by Step Solution

1. Step 1: Write the proportion equation
   20,176 : 42,755 = 42,755 : x
2. Step 2: Convert to fraction form
   20,176/42,755 = 42,755/x
3. Step 3: Cross multiply
   20,176x = 42,755 × 42,755
4. Step 4: Simplify right side
   20,176x = 1,827,990,025
5. Step 5: Solve for x
   x = 1,827,990,025/20,176
6. Step 6: Final answer
   x = 90,602.20