Finding the Third Proportional to 2,072,632 and 4,489,328

Step by Step Solution

1. Step 1: Write the proportion equation
   2,072,632 : 4,489,328 = 4,489,328 : x
2. Step 2: Convert to fraction form
   2,072,632/4,489,328 = 4,489,328/x
3. Step 3: Cross multiply
   2,072,632x = 4,489,328 × 4,489,328
4. Step 4: Simplify right side
   2,072,632x = 20,154,065,891,584
5. Step 5: Solve for x
   x = 20,154,065,891,584/2,072,632
6. Step 6: Final answer
   x = 9,723,899.80