Finding the Third Proportional to 19,203.75 and 21,208.50

Step by Step Solution

1. Step 1: Write the proportion equation
   19,203.75 : 21,208.50 = 21,208.50 : x
2. Step 2: Convert to fraction form
   19,203.75/21,208.50 = 21,208.50/x
3. Step 3: Cross multiply
   19,203.75x = 21,208.50 × 21,208.50
4. Step 4: Simplify right side
   19,203.75x = 449,800,472.25
5. Step 5: Solve for x
   x = 449,800,472.25/19,203.75
6. Step 6: Final answer
   x = 23,422.53