Finding the Third Proportional to 15,394.50 and 21,647.25

Step by Step Solution

1. Step 1: Write the proportion equation
   15,394.50 : 21,647.25 = 21,647.25 : x
2. Step 2: Convert to fraction form
   15,394.50/21,647.25 = 21,647.25/x
3. Step 3: Cross multiply
   15,394.50x = 21,647.25 × 21,647.25
4. Step 4: Simplify right side
   15,394.50x = 468,603,432.56
5. Step 5: Solve for x
   x = 468,603,432.56/15,394.50
6. Step 6: Final answer
   x = 30,439.67