Finding the Third Proportional to 669,355 and 1,019,715

Step by Step Solution

1. Step 1: Write the proportion equation
   669,355 : 1,019,715 = 1,019,715 : x
2. Step 2: Convert to fraction form
   669,355/1,019,715 = 1,019,715/x
3. Step 3: Cross multiply
   669,355x = 1,019,715 × 1,019,715
4. Step 4: Simplify right side
   669,355x = 1,039,818,681,225
5. Step 5: Solve for x
   x = 1,039,818,681,225/669,355
6. Step 6: Final answer
   x = 1,553,463.68