Finding the Third Proportional to 166,510.69 and 259,974.56

Step by Step Solution

1. Step 1: Write the proportion equation
   166,510.69 : 259,974.56 = 259,974.56 : x
2. Step 2: Convert to fraction form
   166,510.69/259,974.56 = 259,974.56/x
3. Step 3: Cross multiply
   166,510.69x = 259,974.56 × 259,974.56
4. Step 4: Simplify right side
   166,510.69x = 67,586,773,147.07
5. Step 5: Solve for x
   x = 67,586,773,147.07/166,510.69
6. Step 6: Final answer
   x = 405,900.51