Finding the Third Proportional to 5,589,398 and 7,910,603

Step by Step Solution

1. Step 1: Write the proportion equation
   5,589,398 : 7,910,603 = 7,910,603 : x
2. Step 2: Convert to fraction form
   5,589,398/7,910,603 = 7,910,603/x
3. Step 3: Cross multiply
   5,589,398x = 7,910,603 × 7,910,603
4. Step 4: Simplify right side
   5,589,398x = 62,577,639,823,609
5. Step 5: Solve for x
   x = 62,577,639,823,609/5,589,398
6. Step 6: Final answer
   x = 11,195,774.54