Finding the Third Proportional to 20,157 and 42,716

Step by Step Solution

1. Step 1: Write the proportion equation
   20,157 : 42,716 = 42,716 : x
2. Step 2: Convert to fraction form
   20,157/42,716 = 42,716/x
3. Step 3: Cross multiply
   20,157x = 42,716 × 42,716
4. Step 4: Simplify right side
   20,157x = 1,824,656,656
5. Step 5: Solve for x
   x = 1,824,656,656/20,157
6. Step 6: Final answer
   x = 90,522.23