Finding the Third Proportional to 31,081.22 and 65,858.06

Step by Step Solution

1. Step 1: Write the proportion equation
   31,081.22 : 65,858.06 = 65,858.06 : x
2. Step 2: Convert to fraction form
   31,081.22/65,858.06 = 65,858.06/x
3. Step 3: Cross multiply
   31,081.22x = 65,858.06 × 65,858.06
4. Step 4: Simplify right side
   31,081.22x = 4,337,284,396.25
5. Step 5: Solve for x
   x = 4,337,284,396.25/31,081.22
6. Step 6: Final answer
   x = 139,546.79