Finding the Third Proportional to 2,178,658 and 3,194,739

Step by Step Solution

1. Step 1: Write the proportion equation
   2,178,658 : 3,194,739 = 3,194,739 : x
2. Step 2: Convert to fraction form
   2,178,658/3,194,739 = 3,194,739/x
3. Step 3: Cross multiply
   2,178,658x = 3,194,739 × 3,194,739
4. Step 4: Simplify right side
   2,178,658x = 10,206,357,278,121
5. Step 5: Solve for x
   x = 10,206,357,278,121/2,178,658
6. Step 6: Final answer
   x = 4,684,699.15