Finding the Third Proportional to 20,790 and 45,414

Step by Step Solution

1. Step 1: Write the proportion equation
   20,790 : 45,414 = 45,414 : x
2. Step 2: Convert to fraction form
   20,790/45,414 = 45,414/x
3. Step 3: Cross multiply
   20,790x = 45,414 × 45,414
4. Step 4: Simplify right side
   20,790x = 2,062,431,396
5. Step 5: Solve for x
   x = 2,062,431,396/20,790
6. Step 6: Final answer
   x = 99,203.05