Finding the Third Proportional to 686,760 and 1,009,585

Step by Step Solution

1. Step 1: Write the proportion equation
   686,760 : 1,009,585 = 1,009,585 : x
2. Step 2: Convert to fraction form
   686,760/1,009,585 = 1,009,585/x
3. Step 3: Cross multiply
   686,760x = 1,009,585 × 1,009,585
4. Step 4: Simplify right side
   686,760x = 1,019,261,872,225
5. Step 5: Solve for x
   x = 1,019,261,872,225/686,760
6. Step 6: Final answer
   x = 1,484,160.22