Finding the Third Proportional to 21,117 and 45,885

Step by Step Solution

1. Step 1: Write the proportion equation
   21,117 : 45,885 = 45,885 : x
2. Step 2: Convert to fraction form
   21,117/45,885 = 45,885/x
3. Step 3: Cross multiply
   21,117x = 45,885 × 45,885
4. Step 4: Simplify right side
   21,117x = 2,105,433,225
5. Step 5: Solve for x
   x = 2,105,433,225/21,117
6. Step 6: Final answer
   x = 99,703.24