Finding the Third Proportional to 105,138 and 236,601

Step by Step Solution

1. Step 1: Write the proportion equation
   105,138 : 236,601 = 236,601 : x
2. Step 2: Convert to fraction form
   105,138/236,601 = 236,601/x
3. Step 3: Cross multiply
   105,138x = 236,601 × 236,601
4. Step 4: Simplify right side
   105,138x = 55,980,033,201
5. Step 5: Solve for x
   x = 55,980,033,201/105,138
6. Step 6: Final answer
   x = 532,443.39