Finding the Third Proportional to 451,738.69 and 619,479.56

Step by Step Solution

1. Step 1: Write the proportion equation
   451,738.69 : 619,479.56 = 619,479.56 : x
2. Step 2: Convert to fraction form
   451,738.69/619,479.56 = 619,479.56/x
3. Step 3: Cross multiply
   451,738.69x = 619,479.56 × 619,479.56
4. Step 4: Simplify right side
   451,738.69x = 383,754,928,355.19
5. Step 5: Solve for x
   x = 383,754,928,355.19/451,738.69
6. Step 6: Final answer
   x = 849,506.45