Finding the Third Proportional to 359,981.25 and 773,383.50

Step by Step Solution

1. Step 1: Write the proportion equation
   359,981.25 : 773,383.50 = 773,383.50 : x
2. Step 2: Convert to fraction form
   359,981.25/773,383.50 = 773,383.50/x
3. Step 3: Cross multiply
   359,981.25x = 773,383.50 × 773,383.50
4. Step 4: Simplify right side
   359,981.25x = 598,122,038,072.25
5. Step 5: Solve for x
   x = 598,122,038,072.25/359,981.25
6. Step 6: Final answer
   x = 1,661,536.64