Finding the Third Proportional to 686,772 and 1,009,608

Step by Step Solution

1. Step 1: Write the proportion equation
   686,772 : 1,009,608 = 1,009,608 : x
2. Step 2: Convert to fraction form
   686,772/1,009,608 = 1,009,608/x
3. Step 3: Cross multiply
   686,772x = 1,009,608 × 1,009,608
4. Step 4: Simplify right side
   686,772x = 1,019,308,313,664
5. Step 5: Solve for x
   x = 1,019,308,313,664/686,772
6. Step 6: Final answer
   x = 1,484,201.91