Finding the Third Proportional to 1,878,869 and 4,188,036

Step by Step Solution

1. Step 1: Write the proportion equation
   1,878,869 : 4,188,036 = 4,188,036 : x
2. Step 2: Convert to fraction form
   1,878,869/4,188,036 = 4,188,036/x
3. Step 3: Cross multiply
   1,878,869x = 4,188,036 × 4,188,036
4. Step 4: Simplify right side
   1,878,869x = 17,539,645,537,296
5. Step 5: Solve for x
   x = 17,539,645,537,296/1,878,869
6. Step 6: Final answer
   x = 9,335,214.72