Finding the Third Proportional to 686,866 and 1,009,722

Step by Step Solution

1. Step 1: Write the proportion equation
   686,866 : 1,009,722 = 1,009,722 : x
2. Step 2: Convert to fraction form
   686,866/1,009,722 = 1,009,722/x
3. Step 3: Cross multiply
   686,866x = 1,009,722 × 1,009,722
4. Step 4: Simplify right side
   686,866x = 1,019,538,517,284
5. Step 5: Solve for x
   x = 1,019,538,517,284/686,866
6. Step 6: Final answer
   x = 1,484,333.94