Finding the Third Proportional to 3,780,826 and 8,296,478

Step by Step Solution

1. Step 1: Write the proportion equation
   3,780,826 : 8,296,478 = 8,296,478 : x
2. Step 2: Convert to fraction form
   3,780,826/8,296,478 = 8,296,478/x
3. Step 3: Cross multiply
   3,780,826x = 8,296,478 × 8,296,478
4. Step 4: Simplify right side
   3,780,826x = 68,831,547,204,484
5. Step 5: Solve for x
   x = 68,831,547,204,484/3,780,826
6. Step 6: Final answer
   x = 18,205,425.80