Finding the Third Proportional to 554,336 and 1,205,856

Step by Step Solution

1. Step 1: Write the proportion equation
   554,336 : 1,205,856 = 1,205,856 : x
2. Step 2: Convert to fraction form
   554,336/1,205,856 = 1,205,856/x
3. Step 3: Cross multiply
   554,336x = 1,205,856 × 1,205,856
4. Step 4: Simplify right side
   554,336x = 1,454,088,692,736
5. Step 5: Solve for x
   x = 1,454,088,692,736/554,336
6. Step 6: Final answer
   x = 2,623,117.92