Finding the Third Proportional to 21,158 and 45,124

Step by Step Solution

1. Step 1: Write the proportion equation
   21,158 : 45,124 = 45,124 : x
2. Step 2: Convert to fraction form
   21,158/45,124 = 45,124/x
3. Step 3: Cross multiply
   21,158x = 45,124 × 45,124
4. Step 4: Simplify right side
   21,158x = 2,036,175,376
5. Step 5: Solve for x
   x = 2,036,175,376/21,158
6. Step 6: Final answer
   x = 96,236.67