Finding the Third Proportional to 123,162 and 263,172

Step by Step Solution

1. Step 1: Write the proportion equation
   123,162 : 263,172 = 263,172 : x
2. Step 2: Convert to fraction form
   123,162/263,172 = 263,172/x
3. Step 3: Cross multiply
   123,162x = 263,172 × 263,172
4. Step 4: Simplify right side
   123,162x = 69,259,501,584
5. Step 5: Solve for x
   x = 69,259,501,584/123,162
6. Step 6: Final answer
   x = 562,344.73