Finding the Third Proportional to 1,139,591 and 2,431,726

Step by Step Solution

1. Step 1: Write the proportion equation
   1,139,591 : 2,431,726 = 2,431,726 : x
2. Step 2: Convert to fraction form
   1,139,591/2,431,726 = 2,431,726/x
3. Step 3: Cross multiply
   1,139,591x = 2,431,726 × 2,431,726
4. Step 4: Simplify right side
   1,139,591x = 5,913,291,339,076
5. Step 5: Solve for x
   x = 5,913,291,339,076/1,139,591
6. Step 6: Final answer
   x = 5,188,959.32