Finding the Third Proportional to 21,157 and 50,123

Step by Step Solution

1. Step 1: Write the proportion equation
   21,157 : 50,123 = 50,123 : x
2. Step 2: Convert to fraction form
   21,157/50,123 = 50,123/x
3. Step 3: Cross multiply
   21,157x = 50,123 × 50,123
4. Step 4: Simplify right side
   21,157x = 2,512,315,129
5. Step 5: Solve for x
   x = 2,512,315,129/21,157
6. Step 6: Final answer
   x = 118,746.28