Finding the Third Proportional to 31,411.25 and 68,362.75

Step by Step Solution

1. Step 1: Write the proportion equation
   31,411.25 : 68,362.75 = 68,362.75 : x
2. Step 2: Convert to fraction form
   31,411.25/68,362.75 = 68,362.75/x
3. Step 3: Cross multiply
   31,411.25x = 68,362.75 × 68,362.75
4. Step 4: Simplify right side
   31,411.25x = 4,673,465,587.56
5. Step 5: Solve for x
   x = 4,673,465,587.56/31,411.25
6. Step 6: Final answer
   x = 148,783.18