Finding the Third Proportional to 1,139,590 and 2,431,724

Step by Step Solution

1. Step 1: Write the proportion equation
   1,139,590 : 2,431,724 = 2,431,724 : x
2. Step 2: Convert to fraction form
   1,139,590/2,431,724 = 2,431,724/x
3. Step 3: Cross multiply
   1,139,590x = 2,431,724 × 2,431,724
4. Step 4: Simplify right side
   1,139,590x = 5,913,281,612,176
5. Step 5: Solve for x
   x = 5,913,281,612,176/1,139,590
6. Step 6: Final answer
   x = 5,188,955.34