Finding the Third Proportional to 1,243,620 and 2,685,744

Step by Step Solution

1. Step 1: Write the proportion equation
   1,243,620 : 2,685,744 = 2,685,744 : x
2. Step 2: Convert to fraction form
   1,243,620/2,685,744 = 2,685,744/x
3. Step 3: Cross multiply
   1,243,620x = 2,685,744 × 2,685,744
4. Step 4: Simplify right side
   1,243,620x = 7,213,220,833,536
5. Step 5: Solve for x
   x = 7,213,220,833,536/1,243,620
6. Step 6: Final answer
   x = 5,800,180.79