Finding the Third Proportional to 510,885 and 773,402.25

Step by Step Solution

1. Step 1: Write the proportion equation
   510,885 : 773,402.25 = 773,402.25 : x
2. Step 2: Convert to fraction form
   510,885/773,402.25 = 773,402.25/x
3. Step 3: Cross multiply
   510,885x = 773,402.25 × 773,402.25
4. Step 4: Simplify right side
   510,885x = 598,151,040,305.06
5. Step 5: Solve for x
   x = 598,151,040,305.06/510,885
6. Step 6: Final answer
   x = 1,170,813.47