Finding the Third Proportional to 51,161 and 111,607

Step by Step Solution

1. Step 1: Write the proportion equation
   51,161 : 111,607 = 111,607 : x
2. Step 2: Convert to fraction form
   51,161/111,607 = 111,607/x
3. Step 3: Cross multiply
   51,161x = 111,607 × 111,607
4. Step 4: Simplify right side
   51,161x = 12,456,122,449
5. Step 5: Solve for x
   x = 12,456,122,449/51,161
6. Step 6: Final answer
   x = 243,469.10