Finding the Third Proportional to 428,736 and 931,256

Step by Step Solution

1. Step 1: Write the proportion equation
   428,736 : 931,256 = 931,256 : x
2. Step 2: Convert to fraction form
   428,736/931,256 = 931,256/x
3. Step 3: Cross multiply
   428,736x = 931,256 × 931,256
4. Step 4: Simplify right side
   428,736x = 867,237,737,536
5. Step 5: Solve for x
   x = 867,237,737,536/428,736
6. Step 6: Final answer
   x = 2,022,777.97