Finding the Third Proportional to 30,994 and 65,864

Step by Step Solution

1. Step 1: Write the proportion equation
   30,994 : 65,864 = 65,864 : x
2. Step 2: Convert to fraction form
   30,994/65,864 = 65,864/x
3. Step 3: Cross multiply
   30,994x = 65,864 × 65,864
4. Step 4: Simplify right side
   30,994x = 4,338,066,496
5. Step 5: Solve for x
   x = 4,338,066,496/30,994
6. Step 6: Final answer
   x = 139,964.72