Finding the Third Proportional to 3,556,394 and 7,787,356

Step by Step Solution

1. Step 1: Write the proportion equation
   3,556,394 : 7,787,356 = 7,787,356 : x
2. Step 2: Convert to fraction form
   3,556,394/7,787,356 = 7,787,356/x
3. Step 3: Cross multiply
   3,556,394x = 7,787,356 × 7,787,356
4. Step 4: Simplify right side
   3,556,394x = 60,642,913,470,736
5. Step 5: Solve for x
   x = 60,642,913,470,736/3,556,394
6. Step 6: Final answer
   x = 17,051,798.39