Finding the Third Proportional to 21,372 and 49,131

Step by Step Solution

1. Step 1: Write the proportion equation
   21,372 : 49,131 = 49,131 : x
2. Step 2: Convert to fraction form
   21,372/49,131 = 49,131/x
3. Step 3: Cross multiply
   21,372x = 49,131 × 49,131
4. Step 4: Simplify right side
   21,372x = 2,413,855,161
5. Step 5: Solve for x
   x = 2,413,855,161/21,372
6. Step 6: Final answer
   x = 112,944.75