Finding the Third Proportional to 31,268.25 and 68,468.63

Step by Step Solution

1. Step 1: Write the proportion equation
   31,268.25 : 68,468.63 = 68,468.63 : x
2. Step 2: Convert to fraction form
   31,268.25/68,468.63 = 68,468.63/x
3. Step 3: Cross multiply
   31,268.25x = 68,468.63 × 68,468.63
4. Step 4: Simplify right side
   31,268.25x = 4,687,952,609.39
5. Step 5: Solve for x
   x = 4,687,952,609.39/31,268.25
6. Step 6: Final answer
   x = 149,926.93