Finding the Third Proportional to 434,155.50 and 670,923

Step by Step Solution

1. Step 1: Write the proportion equation
   434,155.50 : 670,923 = 670,923 : x
2. Step 2: Convert to fraction form
   434,155.50/670,923 = 670,923/x
3. Step 3: Cross multiply
   434,155.50x = 670,923 × 670,923
4. Step 4: Simplify right side
   434,155.50x = 450,137,671,929
5. Step 5: Solve for x
   x = 450,137,671,929/434,155.50
6. Step 6: Final answer
   x = 1,036,812.09