Finding the Third Proportional to 19,436 and 40,256

Step by Step Solution

1. Step 1: Write the proportion equation
   19,436 : 40,256 = 40,256 : x
2. Step 2: Convert to fraction form
   19,436/40,256 = 40,256/x
3. Step 3: Cross multiply
   19,436x = 40,256 × 40,256
4. Step 4: Simplify right side
   19,436x = 1,620,545,536
5. Step 5: Solve for x
   x = 1,620,545,536/19,436
6. Step 6: Final answer
   x = 83,378.55