Finding the Third Proportional to 1,143,186 and 2,438,208

Step by Step Solution

1. Step 1: Write the proportion equation
   1,143,186 : 2,438,208 = 2,438,208 : x
2. Step 2: Convert to fraction form
   1,143,186/2,438,208 = 2,438,208/x
3. Step 3: Cross multiply
   1,143,186x = 2,438,208 × 2,438,208
4. Step 4: Simplify right side
   1,143,186x = 5,944,858,251,264
5. Step 5: Solve for x
   x = 5,944,858,251,264/1,143,186
6. Step 6: Final answer
   x = 5,200,254.60