Finding the Third Proportional to 2,072,612 and 4,489,288

Step by Step Solution

1. Step 1: Write the proportion equation
   2,072,612 : 4,489,288 = 4,489,288 : x
2. Step 2: Convert to fraction form
   2,072,612/4,489,288 = 4,489,288/x
3. Step 3: Cross multiply
   2,072,612x = 4,489,288 × 4,489,288
4. Step 4: Simplify right side
   2,072,612x = 20,153,706,746,944
5. Step 5: Solve for x
   x = 20,153,706,746,944/2,072,612
6. Step 6: Final answer
   x = 9,723,820.35