Finding the Third Proportional to 359,739 and 773,912.25

Step by Step Solution

1. Step 1: Write the proportion equation
   359,739 : 773,912.25 = 773,912.25 : x
2. Step 2: Convert to fraction form
   359,739/773,912.25 = 773,912.25/x
3. Step 3: Cross multiply
   359,739x = 773,912.25 × 773,912.25
4. Step 4: Simplify right side
   359,739x = 598,940,170,700.06
5. Step 5: Solve for x
   x = 598,940,170,700.06/359,739
6. Step 6: Final answer
   x = 1,664,929.77