Finding the Third Proportional to 10,125.75 and 13,631.25

Step by Step Solution

1. Step 1: Write the proportion equation
   10,125.75 : 13,631.25 = 13,631.25 : x
2. Step 2: Convert to fraction form
   10,125.75/13,631.25 = 13,631.25/x
3. Step 3: Cross multiply
   10,125.75x = 13,631.25 × 13,631.25
4. Step 4: Simplify right side
   10,125.75x = 185,810,976.56
5. Step 5: Solve for x
   x = 185,810,976.56/10,125.75
6. Step 6: Final answer
   x = 18,350.34