Finding the Third Proportional to 17,649 and 31,115.25

Step by Step Solution

1. Step 1: Write the proportion equation
   17,649 : 31,115.25 = 31,115.25 : x
2. Step 2: Convert to fraction form
   17,649/31,115.25 = 31,115.25/x
3. Step 3: Cross multiply
   17,649x = 31,115.25 × 31,115.25
4. Step 4: Simplify right side
   17,649x = 968,158,782.56
5. Step 5: Solve for x
   x = 968,158,782.56/17,649
6. Step 6: Final answer
   x = 54,856.30