Finding the Third Proportional to 1,646,408 and 3,607,648

Step by Step Solution

1. Step 1: Write the proportion equation
   1,646,408 : 3,607,648 = 3,607,648 : x
2. Step 2: Convert to fraction form
   1,646,408/3,607,648 = 3,607,648/x
3. Step 3: Cross multiply
   1,646,408x = 3,607,648 × 3,607,648
4. Step 4: Simplify right side
   1,646,408x = 13,015,124,091,904
5. Step 5: Solve for x
   x = 13,015,124,091,904/1,646,408
6. Step 6: Final answer
   x = 7,905,163.30