Finding the Third Proportional to 3,556,408 and 7,787,384

Step by Step Solution

1. Step 1: Write the proportion equation
   3,556,408 : 7,787,384 = 7,787,384 : x
2. Step 2: Convert to fraction form
   3,556,408/7,787,384 = 7,787,384/x
3. Step 3: Cross multiply
   3,556,408x = 7,787,384 × 7,787,384
4. Step 4: Simplify right side
   3,556,408x = 60,643,349,563,456
5. Step 5: Solve for x
   x = 60,643,349,563,456/3,556,408
6. Step 6: Final answer
   x = 17,051,853.88