Finding the Third Proportional to 554,108 and 842,826

Step by Step Solution

1. Step 1: Write the proportion equation
   554,108 : 842,826 = 842,826 : x
2. Step 2: Convert to fraction form
   554,108/842,826 = 842,826/x
3. Step 3: Cross multiply
   554,108x = 842,826 × 842,826
4. Step 4: Simplify right side
   554,108x = 710,355,666,276
5. Step 5: Solve for x
   x = 710,355,666,276/554,108
6. Step 6: Final answer
   x = 1,281,980.53