Finding the Third Proportional to 20,126 and 42,851

Step by Step Solution

1. Step 1: Write the proportion equation
   20,126 : 42,851 = 42,851 : x
2. Step 2: Convert to fraction form
   20,126/42,851 = 42,851/x
3. Step 3: Cross multiply
   20,126x = 42,851 × 42,851
4. Step 4: Simplify right side
   20,126x = 1,836,208,201
5. Step 5: Solve for x
   x = 1,836,208,201/20,126
6. Step 6: Final answer
   x = 91,235.63