Finding the Third Proportional to 339,136 and 730,760

Step by Step Solution

1. Step 1: Write the proportion equation
   339,136 : 730,760 = 730,760 : x
2. Step 2: Convert to fraction form
   339,136/730,760 = 730,760/x
3. Step 3: Cross multiply
   339,136x = 730,760 × 730,760
4. Step 4: Simplify right side
   339,136x = 534,010,177,600
5. Step 5: Solve for x
   x = 534,010,177,600/339,136
6. Step 6: Final answer
   x = 1,574,619.56