Finding the Third Proportional to 1,822,886 and 3,989,008

Step by Step Solution

1. Step 1: Write the proportion equation
   1,822,886 : 3,989,008 = 3,989,008 : x
2. Step 2: Convert to fraction form
   1,822,886/3,989,008 = 3,989,008/x
3. Step 3: Cross multiply
   1,822,886x = 3,989,008 × 3,989,008
4. Step 4: Simplify right side
   1,822,886x = 15,912,184,824,064
5. Step 5: Solve for x
   x = 15,912,184,824,064/1,822,886
6. Step 6: Final answer
   x = 8,729,116.81