Finding the Third Proportional to 436,945.50 and 670,644

Step by Step Solution

1. Step 1: Write the proportion equation
   436,945.50 : 670,644 = 670,644 : x
2. Step 2: Convert to fraction form
   436,945.50/670,644 = 670,644/x
3. Step 3: Cross multiply
   436,945.50x = 670,644 × 670,644
4. Step 4: Simplify right side
   436,945.50x = 449,763,374,736
5. Step 5: Solve for x
   x = 449,763,374,736/436,945.50
6. Step 6: Final answer
   x = 1,029,335.18