Finding the Third Proportional to 1,139,548 and 2,431,628

Step by Step Solution

1. Step 1: Write the proportion equation
   1,139,548 : 2,431,628 = 2,431,628 : x
2. Step 2: Convert to fraction form
   1,139,548/2,431,628 = 2,431,628/x
3. Step 3: Cross multiply
   1,139,548x = 2,431,628 × 2,431,628
4. Step 4: Simplify right side
   1,139,548x = 5,912,814,730,384
5. Step 5: Solve for x
   x = 5,912,814,730,384/1,139,548
6. Step 6: Final answer
   x = 5,188,736.88