Finding the Third Proportional to 21,162 and 45,515

Step by Step Solution

1. Step 1: Write the proportion equation
   21,162 : 45,515 = 45,515 : x
2. Step 2: Convert to fraction form
   21,162/45,515 = 45,515/x
3. Step 3: Cross multiply
   21,162x = 45,515 × 45,515
4. Step 4: Simplify right side
   21,162x = 2,071,615,225
5. Step 5: Solve for x
   x = 2,071,615,225/21,162
6. Step 6: Final answer
   x = 97,893.17