Finding the Third Proportional to 31,257.77 and 68,444.37

Step by Step Solution

1. Step 1: Write the proportion equation
   31,257.77 : 68,444.37 = 68,444.37 : x
2. Step 2: Convert to fraction form
   31,257.77/68,444.37 = 68,444.37/x
3. Step 3: Cross multiply
   31,257.77x = 68,444.37 × 68,444.37
4. Step 4: Simplify right side
   31,257.77x = 4,684,631,399.70
5. Step 5: Solve for x
   x = 4,684,631,399.70/31,257.77
6. Step 6: Final answer
   x = 149,870.92