Finding the Third Proportional to 21,355.88 and 49,896.56

Step by Step Solution

1. Step 1: Write the proportion equation
   21,355.88 : 49,896.56 = 49,896.56 : x
2. Step 2: Convert to fraction form
   21,355.88/49,896.56 = 49,896.56/x
3. Step 3: Cross multiply
   21,355.88x = 49,896.56 × 49,896.56
4. Step 4: Simplify right side
   21,355.88x = 2,489,666,949.32
5. Step 5: Solve for x
   x = 2,489,666,949.32/21,355.88
6. Step 6: Final answer
   x = 116,579.96