Finding the Third Proportional to 554,976 and 1,309,656

Step by Step Solution

1. Step 1: Write the proportion equation
   554,976 : 1,309,656 = 1,309,656 : x
2. Step 2: Convert to fraction form
   554,976/1,309,656 = 1,309,656/x
3. Step 3: Cross multiply
   554,976x = 1,309,656 × 1,309,656
4. Step 4: Simplify right side
   554,976x = 1,715,198,838,336
5. Step 5: Solve for x
   x = 1,715,198,838,336/554,976
6. Step 6: Final answer
   x = 3,090,582.00