Finding the Third Proportional to 1,676,864 and 3,619,408

Step by Step Solution

1. Step 1: Write the proportion equation
   1,676,864 : 3,619,408 = 3,619,408 : x
2. Step 2: Convert to fraction form
   1,676,864/3,619,408 = 3,619,408/x
3. Step 3: Cross multiply
   1,676,864x = 3,619,408 × 3,619,408
4. Step 4: Simplify right side
   1,676,864x = 13,100,114,270,464
5. Step 5: Solve for x
   x = 13,100,114,270,464/1,676,864
6. Step 6: Final answer
   x = 7,812,269.97