Finding the Third Proportional to 1,008,446 and 2,169,818

Step by Step Solution

1. Step 1: Write the proportion equation
   1,008,446 : 2,169,818 = 2,169,818 : x
2. Step 2: Convert to fraction form
   1,008,446/2,169,818 = 2,169,818/x
3. Step 3: Cross multiply
   1,008,446x = 2,169,818 × 2,169,818
4. Step 4: Simplify right side
   1,008,446x = 4,708,110,153,124
5. Step 5: Solve for x
   x = 4,708,110,153,124/1,008,446
6. Step 6: Final answer
   x = 4,668,678.49