Finding the Third Proportional to 51,075 and 105,686

Step by Step Solution

1. Step 1: Write the proportion equation
   51,075 : 105,686 = 105,686 : x
2. Step 2: Convert to fraction form
   51,075/105,686 = 105,686/x
3. Step 3: Cross multiply
   51,075x = 105,686 × 105,686
4. Step 4: Simplify right side
   51,075x = 11,169,530,596
5. Step 5: Solve for x
   x = 11,169,530,596/51,075
6. Step 6: Final answer
   x = 218,688.80