Finding the Third Proportional to 31,419.38 and 65,025.75

Step by Step Solution

1. Step 1: Write the proportion equation
   31,419.38 : 65,025.75 = 65,025.75 : x
2. Step 2: Convert to fraction form
   31,419.38/65,025.75 = 65,025.75/x
3. Step 3: Cross multiply
   31,419.38x = 65,025.75 × 65,025.75
4. Step 4: Simplify right side
   31,419.38x = 4,228,348,163.06
5. Step 5: Solve for x
   x = 4,228,348,163.06/31,419.38
6. Step 6: Final answer
   x = 134,577.73