Finding the Third Proportional to 329,008 and 714,390

Step by Step Solution

1. Step 1: Write the proportion equation
   329,008 : 714,390 = 714,390 : x
2. Step 2: Convert to fraction form
   329,008/714,390 = 714,390/x
3. Step 3: Cross multiply
   329,008x = 714,390 × 714,390
4. Step 4: Simplify right side
   329,008x = 510,353,072,100
5. Step 5: Solve for x
   x = 510,353,072,100/329,008
6. Step 6: Final answer
   x = 1,551,187.42