Finding the Third Proportional to 554,992 and 1,309,696

Step by Step Solution

1. Step 1: Write the proportion equation
   554,992 : 1,309,696 = 1,309,696 : x
2. Step 2: Convert to fraction form
   554,992/1,309,696 = 1,309,696/x
3. Step 3: Cross multiply
   554,992x = 1,309,696 × 1,309,696
4. Step 4: Simplify right side
   554,992x = 1,715,303,612,416
5. Step 5: Solve for x
   x = 1,715,303,612,416/554,992
6. Step 6: Final answer
   x = 3,090,681.69