Finding the Third Proportional to 31,246.13 and 68,745.75

Step by Step Solution

1. Step 1: Write the proportion equation
   31,246.13 : 68,745.75 = 68,745.75 : x
2. Step 2: Convert to fraction form
   31,246.13/68,745.75 = 68,745.75/x
3. Step 3: Cross multiply
   31,246.13x = 68,745.75 × 68,745.75
4. Step 4: Simplify right side
   31,246.13x = 4,725,978,143.06
5. Step 5: Solve for x
   x = 4,725,978,143.06/31,246.13
6. Step 6: Final answer
   x = 151,250.06