Finding the Third Proportional to 1,246,490 and 2,679,189

Step by Step Solution

1. Step 1: Write the proportion equation
   1,246,490 : 2,679,189 = 2,679,189 : x
2. Step 2: Convert to fraction form
   1,246,490/2,679,189 = 2,679,189/x
3. Step 3: Cross multiply
   1,246,490x = 2,679,189 × 2,679,189
4. Step 4: Simplify right side
   1,246,490x = 7,178,053,697,721
5. Step 5: Solve for x
   x = 7,178,053,697,721/1,246,490
6. Step 6: Final answer
   x = 5,758,613.14