Finding the Third Proportional to 366,768 and 777,686.06

Step by Step Solution

1. Step 1: Write the proportion equation
   366,768 : 777,686.06 = 777,686.06 : x
2. Step 2: Convert to fraction form
   366,768/777,686.06 = 777,686.06/x
3. Step 3: Cross multiply
   366,768x = 777,686.06 × 777,686.06
4. Step 4: Simplify right side
   366,768x = 604,795,611,806.75
5. Step 5: Solve for x
   x = 604,795,611,806.75/366,768
6. Step 6: Final answer
   x = 1,648,986.86