Finding the Third Proportional to 10,149.05 and 15,172.31

Step by Step Solution

1. Step 1: Write the proportion equation
   10,149.05 : 15,172.31 = 15,172.31 : x
2. Step 2: Convert to fraction form
   10,149.05/15,172.31 = 15,172.31/x
3. Step 3: Cross multiply
   10,149.05x = 15,172.31 × 15,172.31
4. Step 4: Simplify right side
   10,149.05x = 230,199,066.60
5. Step 5: Solve for x
   x = 230,199,066.60/10,149.05
6. Step 6: Final answer
   x = 22,681.84