Finding the Third Proportional to 40,282 and 56,574

Step by Step Solution

1. Step 1: Write the proportion equation
   40,282 : 56,574 = 56,574 : x
2. Step 2: Convert to fraction form
   40,282/56,574 = 56,574/x
3. Step 3: Cross multiply
   40,282x = 56,574 × 56,574
4. Step 4: Simplify right side
   40,282x = 3,200,617,476
5. Step 5: Solve for x
   x = 3,200,617,476/40,282
6. Step 6: Final answer
   x = 79,455.28