Finding the Third Proportional to 10,150.31 and 12,408.19

Step by Step Solution

1. Step 1: Write the proportion equation
   10,150.31 : 12,408.19 = 12,408.19 : x
2. Step 2: Convert to fraction form
   10,150.31/12,408.19 = 12,408.19/x
3. Step 3: Cross multiply
   10,150.31x = 12,408.19 × 12,408.19
4. Step 4: Simplify right side
   10,150.31x = 153,963,117.04
5. Step 5: Solve for x
   x = 153,963,117.04/10,150.31
6. Step 6: Final answer
   x = 15,168.31