Finding the Third Proportional to 3,556,398 and 7,787,364

Step by Step Solution

1. Step 1: Write the proportion equation
   3,556,398 : 7,787,364 = 7,787,364 : x
2. Step 2: Convert to fraction form
   3,556,398/7,787,364 = 7,787,364/x
3. Step 3: Cross multiply
   3,556,398x = 7,787,364 × 7,787,364
4. Step 4: Simplify right side
   3,556,398x = 60,643,038,068,496
5. Step 5: Solve for x
   x = 60,643,038,068,496/3,556,398
6. Step 6: Final answer
   x = 17,051,814.24