Finding the Third Proportional to 1,863,818 and 4,076,578

Step by Step Solution

1. Step 1: Write the proportion equation
   1,863,818 : 4,076,578 = 4,076,578 : x
2. Step 2: Convert to fraction form
   1,863,818/4,076,578 = 4,076,578/x
3. Step 3: Cross multiply
   1,863,818x = 4,076,578 × 4,076,578
4. Step 4: Simplify right side
   1,863,818x = 16,618,488,190,084
5. Step 5: Solve for x
   x = 16,618,488,190,084/1,863,818
6. Step 6: Final answer
   x = 8,916,368.55