Finding the Third Proportional to 31,308.75 and 65,898

Step by Step Solution

1. Step 1: Write the proportion equation
   31,308.75 : 65,898 = 65,898 : x
2. Step 2: Convert to fraction form
   31,308.75/65,898 = 65,898/x
3. Step 3: Cross multiply
   31,308.75x = 65,898 × 65,898
4. Step 4: Simplify right side
   31,308.75x = 4,342,546,404
5. Step 5: Solve for x
   x = 4,342,546,404/31,308.75
6. Step 6: Final answer
   x = 138,700.73