Finding the Third Proportional to 11,986.26 and 25,210.78

Step by Step Solution

1. Step 1: Write the proportion equation
   11,986.26 : 25,210.78 = 25,210.78 : x
2. Step 2: Convert to fraction form
   11,986.26/25,210.78 = 25,210.78/x
3. Step 3: Cross multiply
   11,986.26x = 25,210.78 × 25,210.78
4. Step 4: Simplify right side
   11,986.26x = 635,583,195.80
5. Step 5: Solve for x
   x = 635,583,195.80/11,986.26
6. Step 6: Final answer
   x = 53,025.98