Finding the Third Proportional to 414,567 and 621,728.63

Step by Step Solution

1. Step 1: Write the proportion equation
   414,567 : 621,728.63 = 621,728.63 : x
2. Step 2: Convert to fraction form
   414,567/621,728.63 = 621,728.63/x
3. Step 3: Cross multiply
   414,567x = 621,728.63 × 621,728.63
4. Step 4: Simplify right side
   414,567x = 386,546,483,144.39
5. Step 5: Solve for x
   x = 386,546,483,144.39/414,567
6. Step 6: Final answer
   x = 932,410.16