Finding the Third Proportional to 3,678,927 and 8,042,142

Step by Step Solution

1. Step 1: Write the proportion equation
   3,678,927 : 8,042,142 = 8,042,142 : x
2. Step 2: Convert to fraction form
   3,678,927/8,042,142 = 8,042,142/x
3. Step 3: Cross multiply
   3,678,927x = 8,042,142 × 8,042,142
4. Step 4: Simplify right side
   3,678,927x = 64,676,047,948,164
5. Step 5: Solve for x
   x = 64,676,047,948,164/3,678,927
6. Step 6: Final answer
   x = 17,580,138.98