Finding the Third Proportional to 31,768.75 and 67,900.25

Step by Step Solution

1. Step 1: Write the proportion equation
   31,768.75 : 67,900.25 = 67,900.25 : x
2. Step 2: Convert to fraction form
   31,768.75/67,900.25 = 67,900.25/x
3. Step 3: Cross multiply
   31,768.75x = 67,900.25 × 67,900.25
4. Step 4: Simplify right side
   31,768.75x = 4,610,443,950.06
5. Step 5: Solve for x
   x = 4,610,443,950.06/31,768.75
6. Step 6: Final answer
   x = 145,125.13