Finding the Third Proportional to 120,780 and 164,016

Step by Step Solution

1. Step 1: Write the proportion equation
   120,780 : 164,016 = 164,016 : x
2. Step 2: Convert to fraction form
   120,780/164,016 = 164,016/x
3. Step 3: Cross multiply
   120,780x = 164,016 × 164,016
4. Step 4: Simplify right side
   120,780x = 26,901,248,256
5. Step 5: Solve for x
   x = 26,901,248,256/120,780
6. Step 6: Final answer
   x = 222,729.33