Finding the Third Proportional to 306,110 and 714,818.50

Step by Step Solution

1. Step 1: Write the proportion equation
   306,110 : 714,818.50 = 714,818.50 : x
2. Step 2: Convert to fraction form
   306,110/714,818.50 = 714,818.50/x
3. Step 3: Cross multiply
   306,110x = 714,818.50 × 714,818.50
4. Step 4: Simplify right side
   306,110x = 510,965,487,942.25
5. Step 5: Solve for x
   x = 510,965,487,942.25/306,110
6. Step 6: Final answer
   x = 1,669,221.81