Finding the Third Proportional to 1,869,264 and 2,800,728

Step by Step Solution

1. Step 1: Write the proportion equation
   1,869,264 : 2,800,728 = 2,800,728 : x
2. Step 2: Convert to fraction form
   1,869,264/2,800,728 = 2,800,728/x
3. Step 3: Cross multiply
   1,869,264x = 2,800,728 × 2,800,728
4. Step 4: Simplify right side
   1,869,264x = 7,844,077,329,984
5. Step 5: Solve for x
   x = 7,844,077,329,984/1,869,264
6. Step 6: Final answer
   x = 4,196,345.37