Finding the Third Proportional to 1,118,642 and 1,678,083

Step by Step Solution

1. Step 1: Write the proportion equation
   1,118,642 : 1,678,083 = 1,678,083 : x
2. Step 2: Convert to fraction form
   1,118,642/1,678,083 = 1,678,083/x
3. Step 3: Cross multiply
   1,118,642x = 1,678,083 × 1,678,083
4. Step 4: Simplify right side
   1,118,642x = 2,815,962,554,889
5. Step 5: Solve for x
   x = 2,815,962,554,889/1,118,642
6. Step 6: Final answer
   x = 2,517,304.51