Finding the Third Proportional to 3,396,608 and 5,138,724

Step by Step Solution

1. Step 1: Write the proportion equation
   3,396,608 : 5,138,724 = 5,138,724 : x
2. Step 2: Convert to fraction form
   3,396,608/5,138,724 = 5,138,724/x
3. Step 3: Cross multiply
   3,396,608x = 5,138,724 × 5,138,724
4. Step 4: Simplify right side
   3,396,608x = 26,406,484,348,176
5. Step 5: Solve for x
   x = 26,406,484,348,176/3,396,608
6. Step 6: Final answer
   x = 7,774,369.12