Finding the Third Proportional to 1,281,543 and 2,728,731

Step by Step Solution

1. Step 1: Write the proportion equation
   1,281,543 : 2,728,731 = 2,728,731 : x
2. Step 2: Convert to fraction form
   1,281,543/2,728,731 = 2,728,731/x
3. Step 3: Cross multiply
   1,281,543x = 2,728,731 × 2,728,731
4. Step 4: Simplify right side
   1,281,543x = 7,445,972,870,361
5. Step 5: Solve for x
   x = 7,445,972,870,361/1,281,543
6. Step 6: Final answer
   x = 5,810,162.34