Finding the Third Proportional to 684,957 and 1,090,856

Step by Step Solution

1. Step 1: Write the proportion equation
   684,957 : 1,090,856 = 1,090,856 : x
2. Step 2: Convert to fraction form
   684,957/1,090,856 = 1,090,856/x
3. Step 3: Cross multiply
   684,957x = 1,090,856 × 1,090,856
4. Step 4: Simplify right side
   684,957x = 1,189,966,812,736
5. Step 5: Solve for x
   x = 1,189,966,812,736/684,957
6. Step 6: Final answer
   x = 1,737,286.88