Finding the Third Proportional to 4,189,258 and 9,039,834

Step by Step Solution

1. Step 1: Write the proportion equation
   4,189,258 : 9,039,834 = 9,039,834 : x
2. Step 2: Convert to fraction form
   4,189,258/9,039,834 = 9,039,834/x
3. Step 3: Cross multiply
   4,189,258x = 9,039,834 × 9,039,834
4. Step 4: Simplify right side
   4,189,258x = 81,718,598,747,556
5. Step 5: Solve for x
   x = 81,718,598,747,556/4,189,258
6. Step 6: Final answer
   x = 19,506,699.93