Finding the Third Proportional to 351,736 and 544,978

Step by Step Solution

1. Step 1: Write the proportion equation
   351,736 : 544,978 = 544,978 : x
2. Step 2: Convert to fraction form
   351,736/544,978 = 544,978/x
3. Step 3: Cross multiply
   351,736x = 544,978 × 544,978
4. Step 4: Simplify right side
   351,736x = 297,001,020,484
5. Step 5: Solve for x
   x = 297,001,020,484/351,736
6. Step 6: Final answer
   x = 844,386.19