Finding the Third Proportional to 589,238 and 900,978

Step by Step Solution

1. Step 1: Write the proportion equation
   589,238 : 900,978 = 900,978 : x
2. Step 2: Convert to fraction form
   589,238/900,978 = 900,978/x
3. Step 3: Cross multiply
   589,238x = 900,978 × 900,978
4. Step 4: Simplify right side
   589,238x = 811,761,356,484
5. Step 5: Solve for x
   x = 811,761,356,484/589,238
6. Step 6: Final answer
   x = 1,377,645.97