Finding the Third Proportional to 1,238,386 and 2,529,256

Step by Step Solution

1. Step 1: Write the proportion equation
   1,238,386 : 2,529,256 = 2,529,256 : x
2. Step 2: Convert to fraction form
   1,238,386/2,529,256 = 2,529,256/x
3. Step 3: Cross multiply
   1,238,386x = 2,529,256 × 2,529,256
4. Step 4: Simplify right side
   1,238,386x = 6,397,135,913,536
5. Step 5: Solve for x
   x = 6,397,135,913,536/1,238,386
6. Step 6: Final answer
   x = 5,165,704.32