Finding the Third Proportional to 407,404.69 and 619,855.03

Step by Step Solution

1. Step 1: Write the proportion equation
   407,404.69 : 619,855.03 = 619,855.03 : x
2. Step 2: Convert to fraction form
   407,404.69/619,855.03 = 619,855.03/x
3. Step 3: Cross multiply
   407,404.69x = 619,855.03 × 619,855.03
4. Step 4: Simplify right side
   407,404.69x = 384,220,259,765.94
5. Step 5: Solve for x
   x = 384,220,259,765.94/407,404.69
6. Step 6: Final answer
   x = 943,092.39