Finding the Third Proportional to 20,910 and 50,572

Step by Step Solution

1. Step 1: Write the proportion equation
   20,910 : 50,572 = 50,572 : x
2. Step 2: Convert to fraction form
   20,910/50,572 = 50,572/x
3. Step 3: Cross multiply
   20,910x = 50,572 × 50,572
4. Step 4: Simplify right side
   20,910x = 2,557,527,184
5. Step 5: Solve for x
   x = 2,557,527,184/20,910
6. Step 6: Final answer
   x = 122,311.20