Finding the Third Proportional to 3,556,412 and 7,787,392

Step by Step Solution

1. Step 1: Write the proportion equation
   3,556,412 : 7,787,392 = 7,787,392 : x
2. Step 2: Convert to fraction form
   3,556,412/7,787,392 = 7,787,392/x
3. Step 3: Cross multiply
   3,556,412x = 7,787,392 × 7,787,392
4. Step 4: Simplify right side
   3,556,412x = 60,643,474,161,664
5. Step 5: Solve for x
   x = 60,643,474,161,664/3,556,412
6. Step 6: Final answer
   x = 17,051,869.74