Finding the Third Proportional to 427,477.50 and 667,086.75

Step by Step Solution

1. Step 1: Write the proportion equation
   427,477.50 : 667,086.75 = 667,086.75 : x
2. Step 2: Convert to fraction form
   427,477.50/667,086.75 = 667,086.75/x
3. Step 3: Cross multiply
   427,477.50x = 667,086.75 × 667,086.75
4. Step 4: Simplify right side
   427,477.50x = 445,004,732,025.56
5. Step 5: Solve for x
   x = 445,004,732,025.56/427,477.50
6. Step 6: Final answer
   x = 1,041,001.53