Finding the Third Proportional to 31,392 and 67,763.25

Step by Step Solution

1. Step 1: Write the proportion equation
   31,392 : 67,763.25 = 67,763.25 : x
2. Step 2: Convert to fraction form
   31,392/67,763.25 = 67,763.25/x
3. Step 3: Cross multiply
   31,392x = 67,763.25 × 67,763.25
4. Step 4: Simplify right side
   31,392x = 4,591,858,050.56
5. Step 5: Solve for x
   x = 4,591,858,050.56/31,392
6. Step 6: Final answer
   x = 146,274.78