Finding the Third Proportional to 21,039.75 and 45,359.25

Step by Step Solution

1. Step 1: Write the proportion equation
   21,039.75 : 45,359.25 = 45,359.25 : x
2. Step 2: Convert to fraction form
   21,039.75/45,359.25 = 45,359.25/x
3. Step 3: Cross multiply
   21,039.75x = 45,359.25 × 45,359.25
4. Step 4: Simplify right side
   21,039.75x = 2,057,461,560.56
5. Step 5: Solve for x
   x = 2,057,461,560.56/21,039.75
6. Step 6: Final answer
   x = 97,789.26