Finding the Third Proportional to 3,476,814 and 5,378,943

Step by Step Solution

1. Step 1: Write the proportion equation
   3,476,814 : 5,378,943 = 5,378,943 : x
2. Step 2: Convert to fraction form
   3,476,814/5,378,943 = 5,378,943/x
3. Step 3: Cross multiply
   3,476,814x = 5,378,943 × 5,378,943
4. Step 4: Simplify right side
   3,476,814x = 28,933,027,797,249
5. Step 5: Solve for x
   x = 28,933,027,797,249/3,476,814
6. Step 6: Final answer
   x = 8,321,707.11