Finding the Third Proportional to 353,101.50 and 771,768

Step by Step Solution

1. Step 1: Write the proportion equation
   353,101.50 : 771,768 = 771,768 : x
2. Step 2: Convert to fraction form
   353,101.50/771,768 = 771,768/x
3. Step 3: Cross multiply
   353,101.50x = 771,768 × 771,768
4. Step 4: Simplify right side
   353,101.50x = 595,625,845,824
5. Step 5: Solve for x
   x = 595,625,845,824/353,101.50
6. Step 6: Final answer
   x = 1,686,840.32