Finding the Third Proportional to 2,145,256 and 4,236,368

Step by Step Solution

1. Step 1: Write the proportion equation
   2,145,256 : 4,236,368 = 4,236,368 : x
2. Step 2: Convert to fraction form
   2,145,256/4,236,368 = 4,236,368/x
3. Step 3: Cross multiply
   2,145,256x = 4,236,368 × 4,236,368
4. Step 4: Simplify right side
   2,145,256x = 17,946,813,831,424
5. Step 5: Solve for x
   x = 17,946,813,831,424/2,145,256
6. Step 6: Final answer
   x = 8,365,814.54