Finding the Third Proportional to 729,978 and 976,443

Step by Step Solution

1. Step 1: Write the proportion equation
   729,978 : 976,443 = 976,443 : x
2. Step 2: Convert to fraction form
   729,978/976,443 = 976,443/x
3. Step 3: Cross multiply
   729,978x = 976,443 × 976,443
4. Step 4: Simplify right side
   729,978x = 953,440,932,249
5. Step 5: Solve for x
   x = 953,440,932,249/729,978
6. Step 6: Final answer
   x = 1,306,122.83