Finding the Third Proportional to 1,428,816 and 2,176,722

Step by Step Solution

1. Step 1: Write the proportion equation
   1,428,816 : 2,176,722 = 2,176,722 : x
2. Step 2: Convert to fraction form
   1,428,816/2,176,722 = 2,176,722/x
3. Step 3: Cross multiply
   1,428,816x = 2,176,722 × 2,176,722
4. Step 4: Simplify right side
   1,428,816x = 4,738,118,665,284
5. Step 5: Solve for x
   x = 4,738,118,665,284/1,428,816
6. Step 6: Final answer
   x = 3,316,115.35