Finding the Third Proportional to 2,061,628 and 4,489,180

Step by Step Solution

1. Step 1: Write the proportion equation
   2,061,628 : 4,489,180 = 4,489,180 : x
2. Step 2: Convert to fraction form
   2,061,628/4,489,180 = 4,489,180/x
3. Step 3: Cross multiply
   2,061,628x = 4,489,180 × 4,489,180
4. Step 4: Simplify right side
   2,061,628x = 20,152,737,072,400
5. Step 5: Solve for x
   x = 20,152,737,072,400/2,061,628
6. Step 6: Final answer
   x = 9,775,156.85