Finding the Third Proportional to 3,503,109 and 5,279,721

Step by Step Solution

1. Step 1: Write the proportion equation
   3,503,109 : 5,279,721 = 5,279,721 : x
2. Step 2: Convert to fraction form
   3,503,109/5,279,721 = 5,279,721/x
3. Step 3: Cross multiply
   3,503,109x = 5,279,721 × 5,279,721
4. Step 4: Simplify right side
   3,503,109x = 27,875,453,837,841
5. Step 5: Solve for x
   x = 27,875,453,837,841/3,503,109
6. Step 6: Final answer
   x = 7,957,346.98