Finding the Third Proportional to 42,676 and 57,100

Step by Step Solution

1. Step 1: Write the proportion equation
   42,676 : 57,100 = 57,100 : x
2. Step 2: Convert to fraction form
   42,676/57,100 = 57,100/x
3. Step 3: Cross multiply
   42,676x = 57,100 × 57,100
4. Step 4: Simplify right side
   42,676x = 3,260,410,000
5. Step 5: Solve for x
   x = 3,260,410,000/42,676
6. Step 6: Final answer
   x = 76,399.15