Finding the Third Proportional to 911,648 and 1,415,256

Step by Step Solution

1. Step 1: Write the proportion equation
   911,648 : 1,415,256 = 1,415,256 : x
2. Step 2: Convert to fraction form
   911,648/1,415,256 = 1,415,256/x
3. Step 3: Cross multiply
   911,648x = 1,415,256 × 1,415,256
4. Step 4: Simplify right side
   911,648x = 2,002,949,545,536
5. Step 5: Solve for x
   x = 2,002,949,545,536/911,648
6. Step 6: Final answer
   x = 2,197,064.60