Finding the Third Proportional to 21,020 and 45,508

Step by Step Solution

1. Step 1: Write the proportion equation
   21,020 : 45,508 = 45,508 : x
2. Step 2: Convert to fraction form
   21,020/45,508 = 45,508/x
3. Step 3: Cross multiply
   21,020x = 45,508 × 45,508
4. Step 4: Simplify right side
   21,020x = 2,070,978,064
5. Step 5: Solve for x
   x = 2,070,978,064/21,020
6. Step 6: Final answer
   x = 98,524.17