Finding the Third Proportional to 21,509 and 50,606

Step by Step Solution

1. Step 1: Write the proportion equation
   21,509 : 50,606 = 50,606 : x
2. Step 2: Convert to fraction form
   21,509/50,606 = 50,606/x
3. Step 3: Cross multiply
   21,509x = 50,606 × 50,606
4. Step 4: Simplify right side
   21,509x = 2,560,967,236
5. Step 5: Solve for x
   x = 2,560,967,236/21,509
6. Step 6: Final answer
   x = 119,064.91