Finding the Third Proportional to 2,787,411 and 4,219,686

Step by Step Solution

1. Step 1: Write the proportion equation
   2,787,411 : 4,219,686 = 4,219,686 : x
2. Step 2: Convert to fraction form
   2,787,411/4,219,686 = 4,219,686/x
3. Step 3: Cross multiply
   2,787,411x = 4,219,686 × 4,219,686
4. Step 4: Simplify right side
   2,787,411x = 17,805,749,938,596
5. Step 5: Solve for x
   x = 17,805,749,938,596/2,787,411
6. Step 6: Final answer
   x = 6,387,916.94