Finding the Third Proportional to 1,278,870 and 2,734,988

Step by Step Solution

1. Step 1: Write the proportion equation
   1,278,870 : 2,734,988 = 2,734,988 : x
2. Step 2: Convert to fraction form
   1,278,870/2,734,988 = 2,734,988/x
3. Step 3: Cross multiply
   1,278,870x = 2,734,988 × 2,734,988
4. Step 4: Simplify right side
   1,278,870x = 7,480,159,360,144
5. Step 5: Solve for x
   x = 7,480,159,360,144/1,278,870
6. Step 6: Final answer
   x = 5,849,038.10