Finding the Third Proportional to 858,262 and 1,358,736

Step by Step Solution

1. Step 1: Write the proportion equation
   858,262 : 1,358,736 = 1,358,736 : x
2. Step 2: Convert to fraction form
   858,262/1,358,736 = 1,358,736/x
3. Step 3: Cross multiply
   858,262x = 1,358,736 × 1,358,736
4. Step 4: Simplify right side
   858,262x = 1,846,163,517,696
5. Step 5: Solve for x
   x = 1,846,163,517,696/858,262
6. Step 6: Final answer
   x = 2,151,048.88