Finding the Third Proportional to 682,636 and 918,960

Step by Step Solution

1. Step 1: Write the proportion equation
   682,636 : 918,960 = 918,960 : x
2. Step 2: Convert to fraction form
   682,636/918,960 = 918,960/x
3. Step 3: Cross multiply
   682,636x = 918,960 × 918,960
4. Step 4: Simplify right side
   682,636x = 844,487,481,600
5. Step 5: Solve for x
   x = 844,487,481,600/682,636
6. Step 6: Final answer
   x = 1,237,097.78