Finding the Third Proportional to 14,145.25 and 31,115.25

Step by Step Solution

1. Step 1: Write the proportion equation
   14,145.25 : 31,115.25 = 31,115.25 : x
2. Step 2: Convert to fraction form
   14,145.25/31,115.25 = 31,115.25/x
3. Step 3: Cross multiply
   14,145.25x = 31,115.25 × 31,115.25
4. Step 4: Simplify right side
   14,145.25x = 968,158,782.56
5. Step 5: Solve for x
   x = 968,158,782.56/14,145.25
6. Step 6: Final answer
   x = 68,444.09