Finding the Third Proportional to 353,171.25 and 765,004.50

Step by Step Solution

1. Step 1: Write the proportion equation
   353,171.25 : 765,004.50 = 765,004.50 : x
2. Step 2: Convert to fraction form
   353,171.25/765,004.50 = 765,004.50/x
3. Step 3: Cross multiply
   353,171.25x = 765,004.50 × 765,004.50
4. Step 4: Simplify right side
   353,171.25x = 585,231,885,020.25
5. Step 5: Solve for x
   x = 585,231,885,020.25/353,171.25
6. Step 6: Final answer
   x = 1,657,076.80