Finding the Third Proportional to 21,127.50 and 28,455

Step by Step Solution

1. Step 1: Write the proportion equation
   21,127.50 : 28,455 = 28,455 : x
2. Step 2: Convert to fraction form
   21,127.50/28,455 = 28,455/x
3. Step 3: Cross multiply
   21,127.50x = 28,455 × 28,455
4. Step 4: Simplify right side
   21,127.50x = 809,687,025
5. Step 5: Solve for x
   x = 809,687,025/21,127.50
6. Step 6: Final answer
   x = 38,323.84