Finding the Third Proportional to 306,105 and 714,804.75

Step by Step Solution

1. Step 1: Write the proportion equation
   306,105 : 714,804.75 = 714,804.75 : x
2. Step 2: Convert to fraction form
   306,105/714,804.75 = 714,804.75/x
3. Step 3: Cross multiply
   306,105x = 714,804.75 × 714,804.75
4. Step 4: Simplify right side
   306,105x = 510,945,830,622.56
5. Step 5: Solve for x
   x = 510,945,830,622.56/306,105
6. Step 6: Final answer
   x = 1,669,184.86