Finding the Third Proportional to 1,676,978 and 3,619,494

Step by Step Solution

1. Step 1: Write the proportion equation
   1,676,978 : 3,619,494 = 3,619,494 : x
2. Step 2: Convert to fraction form
   1,676,978/3,619,494 = 3,619,494/x
3. Step 3: Cross multiply
   1,676,978x = 3,619,494 × 3,619,494
4. Step 4: Simplify right side
   1,676,978x = 13,100,736,816,036
5. Step 5: Solve for x
   x = 13,100,736,816,036/1,676,978
6. Step 6: Final answer
   x = 7,812,110.13