Finding the Third Proportional to 40,782 and 54,885

Step by Step Solution

1. Step 1: Write the proportion equation
   40,782 : 54,885 = 54,885 : x
2. Step 2: Convert to fraction form
   40,782/54,885 = 54,885/x
3. Step 3: Cross multiply
   40,782x = 54,885 × 54,885
4. Step 4: Simplify right side
   40,782x = 3,012,363,225
5. Step 5: Solve for x
   x = 3,012,363,225/40,782
6. Step 6: Final answer
   x = 73,865.02