Finding the Third Proportional to 1,433,136 and 3,128,256

Step by Step Solution

1. Step 1: Write the proportion equation
   1,433,136 : 3,128,256 = 3,128,256 : x
2. Step 2: Convert to fraction form
   1,433,136/3,128,256 = 3,128,256/x
3. Step 3: Cross multiply
   1,433,136x = 3,128,256 × 3,128,256
4. Step 4: Simplify right side
   1,433,136x = 9,785,985,601,536
5. Step 5: Solve for x
   x = 9,785,985,601,536/1,433,136
6. Step 6: Final answer
   x = 6,828,371.91