Finding the Third Proportional to 721,697 and 1,008,978

Step by Step Solution

1. Step 1: Write the proportion equation
   721,697 : 1,008,978 = 1,008,978 : x
2. Step 2: Convert to fraction form
   721,697/1,008,978 = 1,008,978/x
3. Step 3: Cross multiply
   721,697x = 1,008,978 × 1,008,978
4. Step 4: Simplify right side
   721,697x = 1,018,036,604,484
5. Step 5: Solve for x
   x = 1,018,036,604,484/721,697
6. Step 6: Final answer
   x = 1,410,614.99