Finding the Third Proportional to 669,380 and 1,019,772

Step by Step Solution

1. Step 1: Write the proportion equation
   669,380 : 1,019,772 = 1,019,772 : x
2. Step 2: Convert to fraction form
   669,380/1,019,772 = 1,019,772/x
3. Step 3: Cross multiply
   669,380x = 1,019,772 × 1,019,772
4. Step 4: Simplify right side
   669,380x = 1,039,934,931,984
5. Step 5: Solve for x
   x = 1,039,934,931,984/669,380
6. Step 6: Final answer
   x = 1,553,579.33