Finding the Third Proportional to 10,142.63 and 15,105.75

Step by Step Solution

1. Step 1: Write the proportion equation
   10,142.63 : 15,105.75 = 15,105.75 : x
2. Step 2: Convert to fraction form
   10,142.63/15,105.75 = 15,105.75/x
3. Step 3: Cross multiply
   10,142.63x = 15,105.75 × 15,105.75
4. Step 4: Simplify right side
   10,142.63x = 228,183,683.06
5. Step 5: Solve for x
   x = 228,183,683.06/10,142.63
6. Step 6: Final answer
   x = 22,497.50