Finding the Third Proportional to 21,229.50 and 45,918

Step by Step Solution

1. Step 1: Write the proportion equation
   21,229.50 : 45,918 = 45,918 : x
2. Step 2: Convert to fraction form
   21,229.50/45,918 = 45,918/x
3. Step 3: Cross multiply
   21,229.50x = 45,918 × 45,918
4. Step 4: Simplify right side
   21,229.50x = 2,108,462,724
5. Step 5: Solve for x
   x = 2,108,462,724/21,229.50
6. Step 6: Final answer
   x = 99,317.59