Finding the Third Proportional to 451,905 and 700,306.50

Step by Step Solution

1. Step 1: Write the proportion equation
   451,905 : 700,306.50 = 700,306.50 : x
2. Step 2: Convert to fraction form
   451,905/700,306.50 = 700,306.50/x
3. Step 3: Cross multiply
   451,905x = 700,306.50 × 700,306.50
4. Step 4: Simplify right side
   451,905x = 490,429,193,942.25
5. Step 5: Solve for x
   x = 490,429,193,942.25/451,905
6. Step 6: Final answer
   x = 1,085,248.43