Finding the Third Proportional to 42,266 and 56,928

Step by Step Solution

1. Step 1: Write the proportion equation
   42,266 : 56,928 = 56,928 : x
2. Step 2: Convert to fraction form
   42,266/56,928 = 56,928/x
3. Step 3: Cross multiply
   42,266x = 56,928 × 56,928
4. Step 4: Simplify right side
   42,266x = 3,240,797,184
5. Step 5: Solve for x
   x = 3,240,797,184/42,266
6. Step 6: Final answer
   x = 76,676.22