Finding the Third Proportional to 1,475,086 and 2,278,138

Step by Step Solution

1. Step 1: Write the proportion equation
   1,475,086 : 2,278,138 = 2,278,138 : x
2. Step 2: Convert to fraction form
   1,475,086/2,278,138 = 2,278,138/x
3. Step 3: Cross multiply
   1,475,086x = 2,278,138 × 2,278,138
4. Step 4: Simplify right side
   1,475,086x = 5,189,912,747,044
5. Step 5: Solve for x
   x = 5,189,912,747,044/1,475,086
6. Step 6: Final answer
   x = 3,518,379.77