Finding the Third Proportional to 15,460.50 and 17,647.50

Step by Step Solution

1. Step 1: Write the proportion equation
   15,460.50 : 17,647.50 = 17,647.50 : x
2. Step 2: Convert to fraction form
   15,460.50/17,647.50 = 17,647.50/x
3. Step 3: Cross multiply
   15,460.50x = 17,647.50 × 17,647.50
4. Step 4: Simplify right side
   15,460.50x = 311,434,256.25
5. Step 5: Solve for x
   x = 311,434,256.25/15,460.50
6. Step 6: Final answer
   x = 20,143.87