Finding the Third Proportional to 21,642 and 47,256

Step by Step Solution

1. Step 1: Write the proportion equation
   21,642 : 47,256 = 47,256 : x
2. Step 2: Convert to fraction form
   21,642/47,256 = 47,256/x
3. Step 3: Cross multiply
   21,642x = 47,256 × 47,256
4. Step 4: Simplify right side
   21,642x = 2,233,129,536
5. Step 5: Solve for x
   x = 2,233,129,536/21,642
6. Step 6: Final answer
   x = 103,184.99