Finding the Third Proportional to 1,476,864 and 3,178,368

Step by Step Solution

1. Step 1: Write the proportion equation
   1,476,864 : 3,178,368 = 3,178,368 : x
2. Step 2: Convert to fraction form
   1,476,864/3,178,368 = 3,178,368/x
3. Step 3: Cross multiply
   1,476,864x = 3,178,368 × 3,178,368
4. Step 4: Simplify right side
   1,476,864x = 10,102,023,143,424
5. Step 5: Solve for x
   x = 10,102,023,143,424/1,476,864
6. Step 6: Final answer
   x = 6,840,185.11