Finding the Third Proportional to 648,974 and 969,978

Step by Step Solution

1. Step 1: Write the proportion equation
   648,974 : 969,978 = 969,978 : x
2. Step 2: Convert to fraction form
   648,974/969,978 = 969,978/x
3. Step 3: Cross multiply
   648,974x = 969,978 × 969,978
4. Step 4: Simplify right side
   648,974x = 940,857,320,484
5. Step 5: Solve for x
   x = 940,857,320,484/648,974
6. Step 6: Final answer
   x = 1,449,761.19