Finding the Third Proportional to 1,863,878 and 4,076,648

Step by Step Solution

1. Step 1: Write the proportion equation
   1,863,878 : 4,076,648 = 4,076,648 : x
2. Step 2: Convert to fraction form
   1,863,878/4,076,648 = 4,076,648/x
3. Step 3: Cross multiply
   1,863,878x = 4,076,648 × 4,076,648
4. Step 4: Simplify right side
   1,863,878x = 16,619,058,915,904
5. Step 5: Solve for x
   x = 16,619,058,915,904/1,863,878
6. Step 6: Final answer
   x = 8,916,387.72