Finding the Third Proportional to 448,978 and 697,076

Step by Step Solution

1. Step 1: Write the proportion equation
   448,978 : 697,076 = 697,076 : x
2. Step 2: Convert to fraction form
   448,978/697,076 = 697,076/x
3. Step 3: Cross multiply
   448,978x = 697,076 × 697,076
4. Step 4: Simplify right side
   448,978x = 485,914,949,776
5. Step 5: Solve for x
   x = 485,914,949,776/448,978
6. Step 6: Final answer
   x = 1,082,268.95