Finding the Third Proportional to 1,431,072 and 2,005,620

Step by Step Solution

1. Step 1: Write the proportion equation
   1,431,072 : 2,005,620 = 2,005,620 : x
2. Step 2: Convert to fraction form
   1,431,072/2,005,620 = 2,005,620/x
3. Step 3: Cross multiply
   1,431,072x = 2,005,620 × 2,005,620
4. Step 4: Simplify right side
   1,431,072x = 4,022,511,584,400
5. Step 5: Solve for x
   x = 4,022,511,584,400/1,431,072
6. Step 6: Final answer
   x = 2,810,838.02