Finding the Third Proportional to 1,071,690 and 2,311,642

Step by Step Solution

1. Step 1: Write the proportion equation
   1,071,690 : 2,311,642 = 2,311,642 : x
2. Step 2: Convert to fraction form
   1,071,690/2,311,642 = 2,311,642/x
3. Step 3: Cross multiply
   1,071,690x = 2,311,642 × 2,311,642
4. Step 4: Simplify right side
   1,071,690x = 5,343,688,736,164
5. Step 5: Solve for x
   x = 5,343,688,736,164/1,071,690
6. Step 6: Final answer
   x = 4,986,226.18