Finding the Third Proportional to 1,197,312 and 2,560,656

Step by Step Solution

1. Step 1: Write the proportion equation
   1,197,312 : 2,560,656 = 2,560,656 : x
2. Step 2: Convert to fraction form
   1,197,312/2,560,656 = 2,560,656/x
3. Step 3: Cross multiply
   1,197,312x = 2,560,656 × 2,560,656
4. Step 4: Simplify right side
   1,197,312x = 6,556,959,150,336
5. Step 5: Solve for x
   x = 6,556,959,150,336/1,197,312
6. Step 6: Final answer
   x = 5,476,399.76