Finding the Third Proportional to 10,455.75 and 25,288.50

Step by Step Solution

1. Step 1: Write the proportion equation
   10,455.75 : 25,288.50 = 25,288.50 : x
2. Step 2: Convert to fraction form
   10,455.75/25,288.50 = 25,288.50/x
3. Step 3: Cross multiply
   10,455.75x = 25,288.50 × 25,288.50
4. Step 4: Simplify right side
   10,455.75x = 639,508,232.25
5. Step 5: Solve for x
   x = 639,508,232.25/10,455.75
6. Step 6: Final answer
   x = 61,163.31