Finding the Third Proportional to 1,678,200 and 3,621,756

Step by Step Solution

1. Step 1: Write the proportion equation
   1,678,200 : 3,621,756 = 3,621,756 : x
2. Step 2: Convert to fraction form
   1,678,200/3,621,756 = 3,621,756/x
3. Step 3: Cross multiply
   1,678,200x = 3,621,756 × 3,621,756
4. Step 4: Simplify right side
   1,678,200x = 13,117,116,523,536
5. Step 5: Solve for x
   x = 13,117,116,523,536/1,678,200
6. Step 6: Final answer
   x = 7,816,181.94