Finding the Third Proportional to 4,189,256 and 9,039,830

Step by Step Solution

1. Step 1: Write the proportion equation
   4,189,256 : 9,039,830 = 9,039,830 : x
2. Step 2: Convert to fraction form
   4,189,256/9,039,830 = 9,039,830/x
3. Step 3: Cross multiply
   4,189,256x = 9,039,830 × 9,039,830
4. Step 4: Simplify right side
   4,189,256x = 81,718,526,428,900
5. Step 5: Solve for x
   x = 81,718,526,428,900/4,189,256
6. Step 6: Final answer
   x = 19,506,691.98