Finding the Third Proportional to 572,978 and 1,214,256

Step by Step Solution

1. Step 1: Write the proportion equation
   572,978 : 1,214,256 = 1,214,256 : x
2. Step 2: Convert to fraction form
   572,978/1,214,256 = 1,214,256/x
3. Step 3: Cross multiply
   572,978x = 1,214,256 × 1,214,256
4. Step 4: Simplify right side
   572,978x = 1,474,417,633,536
5. Step 5: Solve for x
   x = 1,474,417,633,536/572,978
6. Step 6: Final answer
   x = 2,573,253.48