Finding the Third Proportional to 31,392.56 and 65,883.38

Step by Step Solution

1. Step 1: Write the proportion equation
   31,392.56 : 65,883.38 = 65,883.38 : x
2. Step 2: Convert to fraction form
   31,392.56/65,883.38 = 65,883.38/x
3. Step 3: Cross multiply
   31,392.56x = 65,883.38 × 65,883.38
4. Step 4: Simplify right side
   31,392.56x = 4,340,619,101.39
5. Step 5: Solve for x
   x = 4,340,619,101.39/31,392.56
6. Step 6: Final answer
   x = 138,269.03