Finding the Third Proportional to 15,986 and 25,077.50

Step by Step Solution

1. Step 1: Write the proportion equation
   15,986 : 25,077.50 = 25,077.50 : x
2. Step 2: Convert to fraction form
   15,986/25,077.50 = 25,077.50/x
3. Step 3: Cross multiply
   15,986x = 25,077.50 × 25,077.50
4. Step 4: Simplify right side
   15,986x = 628,881,006.25
5. Step 5: Solve for x
   x = 628,881,006.25/15,986
6. Step 6: Final answer
   x = 39,339.48