Finding the Third Proportional to 384,812 and 591,978

Step by Step Solution

1. Step 1: Write the proportion equation
   384,812 : 591,978 = 591,978 : x
2. Step 2: Convert to fraction form
   384,812/591,978 = 591,978/x
3. Step 3: Cross multiply
   384,812x = 591,978 × 591,978
4. Step 4: Simplify right side
   384,812x = 350,437,952,484
5. Step 5: Solve for x
   x = 350,437,952,484/384,812
6. Step 6: Final answer
   x = 910,673.14