Finding the Third Proportional to 355,770.50 and 777,907

Step by Step Solution

1. Step 1: Write the proportion equation
   355,770.50 : 777,907 = 777,907 : x
2. Step 2: Convert to fraction form
   355,770.50/777,907 = 777,907/x
3. Step 3: Cross multiply
   355,770.50x = 777,907 × 777,907
4. Step 4: Simplify right side
   355,770.50x = 605,139,300,649
5. Step 5: Solve for x
   x = 605,139,300,649/355,770.50
6. Step 6: Final answer
   x = 1,700,926.02