Finding the Third Proportional to 359,077.50 and 777,996

Step by Step Solution

1. Step 1: Write the proportion equation
   359,077.50 : 777,996 = 777,996 : x
2. Step 2: Convert to fraction form
   359,077.50/777,996 = 777,996/x
3. Step 3: Cross multiply
   359,077.50x = 777,996 × 777,996
4. Step 4: Simplify right side
   359,077.50x = 605,277,776,016
5. Step 5: Solve for x
   x = 605,277,776,016/359,077.50
6. Step 6: Final answer
   x = 1,685,646.63