Finding the Third Proportional to 21,146 and 45,540

Step by Step Solution

1. Step 1: Write the proportion equation
   21,146 : 45,540 = 45,540 : x
2. Step 2: Convert to fraction form
   21,146/45,540 = 45,540/x
3. Step 3: Cross multiply
   21,146x = 45,540 × 45,540
4. Step 4: Simplify right side
   21,146x = 2,073,891,600
5. Step 5: Solve for x
   x = 2,073,891,600/21,146
6. Step 6: Final answer
   x = 98,074.89