Finding the Third Proportional to 686,886 and 1,009,761

Step by Step Solution

1. Step 1: Write the proportion equation
   686,886 : 1,009,761 = 1,009,761 : x
2. Step 2: Convert to fraction form
   686,886/1,009,761 = 1,009,761/x
3. Step 3: Cross multiply
   686,886x = 1,009,761 × 1,009,761
4. Step 4: Simplify right side
   686,886x = 1,019,617,277,121
5. Step 5: Solve for x
   x = 1,019,617,277,121/686,886
6. Step 6: Final answer
   x = 1,484,405.38