Finding the Third Proportional to 906,976 and 1,977,256

Step by Step Solution

1. Step 1: Write the proportion equation
   906,976 : 1,977,256 = 1,977,256 : x
2. Step 2: Convert to fraction form
   906,976/1,977,256 = 1,977,256/x
3. Step 3: Cross multiply
   906,976x = 1,977,256 × 1,977,256
4. Step 4: Simplify right side
   906,976x = 3,909,541,289,536
5. Step 5: Solve for x
   x = 3,909,541,289,536/906,976
6. Step 6: Final answer
   x = 4,310,523.42