Finding the Third Proportional to 1,678,230 and 3,621,816

Step by Step Solution

1. Step 1: Write the proportion equation
   1,678,230 : 3,621,816 = 3,621,816 : x
2. Step 2: Convert to fraction form
   1,678,230/3,621,816 = 3,621,816/x
3. Step 3: Cross multiply
   1,678,230x = 3,621,816 × 3,621,816
4. Step 4: Simplify right side
   1,678,230x = 13,117,551,137,856
5. Step 5: Solve for x
   x = 13,117,551,137,856/1,678,230
6. Step 6: Final answer
   x = 7,816,301.19