Finding the Third Proportional to 333,718 and 691,092

Step by Step Solution

1. Step 1: Write the proportion equation
   333,718 : 691,092 = 691,092 : x
2. Step 2: Convert to fraction form
   333,718/691,092 = 691,092/x
3. Step 3: Cross multiply
   333,718x = 691,092 × 691,092
4. Step 4: Simplify right side
   333,718x = 477,608,152,464
5. Step 5: Solve for x
   x = 477,608,152,464/333,718
6. Step 6: Final answer
   x = 1,431,172.88