Finding the Third Proportional to 359,035.50 and 777,910

Step by Step Solution

1. Step 1: Write the proportion equation
   359,035.50 : 777,910 = 777,910 : x
2. Step 2: Convert to fraction form
   359,035.50/777,910 = 777,910/x
3. Step 3: Cross multiply
   359,035.50x = 777,910 × 777,910
4. Step 4: Simplify right side
   359,035.50x = 605,143,968,100
5. Step 5: Solve for x
   x = 605,143,968,100/359,035.50
6. Step 6: Final answer
   x = 1,685,471.13