Finding the Third Proportional to 6,838,138 and 10,828,019

Step by Step Solution

1. Step 1: Write the proportion equation
   6,838,138 : 10,828,019 = 10,828,019 : x
2. Step 2: Convert to fraction form
   6,838,138/10,828,019 = 10,828,019/x
3. Step 3: Cross multiply
   6,838,138x = 10,828,019 × 10,828,019
4. Step 4: Simplify right side
   6,838,138x = 117,245,995,464,361
5. Step 5: Solve for x
   x = 117,245,995,464,361/6,838,138
6. Step 6: Final answer
   x = 17,145,894.90