Finding the Third Proportional to 1,137,396 and 2,405,256

Step by Step Solution

1. Step 1: Write the proportion equation
   1,137,396 : 2,405,256 = 2,405,256 : x
2. Step 2: Convert to fraction form
   1,137,396/2,405,256 = 2,405,256/x
3. Step 3: Cross multiply
   1,137,396x = 2,405,256 × 2,405,256
4. Step 4: Simplify right side
   1,137,396x = 5,785,256,425,536
5. Step 5: Solve for x
   x = 5,785,256,425,536/1,137,396
6. Step 6: Final answer
   x = 5,086,404.76