Finding the Third Proportional to 21,057.75 and 45,489.38

Step by Step Solution

1. Step 1: Write the proportion equation
   21,057.75 : 45,489.38 = 45,489.38 : x
2. Step 2: Convert to fraction form
   21,057.75/45,489.38 = 45,489.38/x
3. Step 3: Cross multiply
   21,057.75x = 45,489.38 × 45,489.38
4. Step 4: Simplify right side
   21,057.75x = 2,069,283,237.89
5. Step 5: Solve for x
   x = 2,069,283,237.89/21,057.75
6. Step 6: Final answer
   x = 98,267.06