Finding the Third Proportional to 445,984.50 and 679,434

Step by Step Solution

1. Step 1: Write the proportion equation
   445,984.50 : 679,434 = 679,434 : x
2. Step 2: Convert to fraction form
   445,984.50/679,434 = 679,434/x
3. Step 3: Cross multiply
   445,984.50x = 679,434 × 679,434
4. Step 4: Simplify right side
   445,984.50x = 461,630,560,356
5. Step 5: Solve for x
   x = 461,630,560,356/445,984.50
6. Step 6: Final answer
   x = 1,035,082.07