Finding the Third Proportional to 10,195.50 and 13,721.25

Step by Step Solution

1. Step 1: Write the proportion equation
   10,195.50 : 13,721.25 = 13,721.25 : x
2. Step 2: Convert to fraction form
   10,195.50/13,721.25 = 13,721.25/x
3. Step 3: Cross multiply
   10,195.50x = 13,721.25 × 13,721.25
4. Step 4: Simplify right side
   10,195.50x = 188,272,701.56
5. Step 5: Solve for x
   x = 188,272,701.56/10,195.50
6. Step 6: Final answer
   x = 18,466.25