Finding the Third Proportional to 445,593.50 and 670,520

Step by Step Solution

1. Step 1: Write the proportion equation
   445,593.50 : 670,520 = 670,520 : x
2. Step 2: Convert to fraction form
   445,593.50/670,520 = 670,520/x
3. Step 3: Cross multiply
   445,593.50x = 670,520 × 670,520
4. Step 4: Simplify right side
   445,593.50x = 449,597,070,400
5. Step 5: Solve for x
   x = 449,597,070,400/445,593.50
6. Step 6: Final answer
   x = 1,008,984.80