Finding the Third Proportional to 69,521 and 151,790

Step by Step Solution

1. Step 1: Write the proportion equation
   69,521 : 151,790 = 151,790 : x
2. Step 2: Convert to fraction form
   69,521/151,790 = 151,790/x
3. Step 3: Cross multiply
   69,521x = 151,790 × 151,790
4. Step 4: Simplify right side
   69,521x = 23,040,204,100
5. Step 5: Solve for x
   x = 23,040,204,100/69,521
6. Step 6: Final answer
   x = 331,413.59