Finding the Third Proportional to 20,356 and 41,719

Step by Step Solution

1. Step 1: Write the proportion equation
   20,356 : 41,719 = 41,719 : x
2. Step 2: Convert to fraction form
   20,356/41,719 = 41,719/x
3. Step 3: Cross multiply
   20,356x = 41,719 × 41,719
4. Step 4: Simplify right side
   20,356x = 1,740,474,961
5. Step 5: Solve for x
   x = 1,740,474,961/20,356
6. Step 6: Final answer
   x = 85,501.82