Finding the Third Proportional to 3,678,930 and 8,042,148

Step by Step Solution

1. Step 1: Write the proportion equation
   3,678,930 : 8,042,148 = 8,042,148 : x
2. Step 2: Convert to fraction form
   3,678,930/8,042,148 = 8,042,148/x
3. Step 3: Cross multiply
   3,678,930x = 8,042,148 × 8,042,148
4. Step 4: Simplify right side
   3,678,930x = 64,676,144,453,904
5. Step 5: Solve for x
   x = 64,676,144,453,904/3,678,930
6. Step 6: Final answer
   x = 17,580,150.87