Finding the Third Proportional to 65,078 and 88,399

Step by Step Solution

1. Step 1: Write the proportion equation
   65,078 : 88,399 = 88,399 : x
2. Step 2: Convert to fraction form
   65,078/88,399 = 88,399/x
3. Step 3: Cross multiply
   65,078x = 88,399 × 88,399
4. Step 4: Simplify right side
   65,078x = 7,814,383,201
5. Step 5: Solve for x
   x = 7,814,383,201/65,078
6. Step 6: Final answer
   x = 120,077.19