Finding the Third Proportional to 42,806 and 56,799

Step by Step Solution

1. Step 1: Write the proportion equation
   42,806 : 56,799 = 56,799 : x
2. Step 2: Convert to fraction form
   42,806/56,799 = 56,799/x
3. Step 3: Cross multiply
   42,806x = 56,799 × 56,799
4. Step 4: Simplify right side
   42,806x = 3,226,126,401
5. Step 5: Solve for x
   x = 3,226,126,401/42,806
6. Step 6: Final answer
   x = 75,366.22