Finding the Third Proportional to 1,990,912 and 3,147,586

Step by Step Solution

1. Step 1: Write the proportion equation
   1,990,912 : 3,147,586 = 3,147,586 : x
2. Step 2: Convert to fraction form
   1,990,912/3,147,586 = 3,147,586/x
3. Step 3: Cross multiply
   1,990,912x = 3,147,586 × 3,147,586
4. Step 4: Simplify right side
   1,990,912x = 9,907,297,627,396
5. Step 5: Solve for x
   x = 9,907,297,627,396/1,990,912
6. Step 6: Final answer
   x = 4,976,260.94