Finding the Third Proportional to 140,562 and 309,924

Step by Step Solution

1. Step 1: Write the proportion equation
   140,562 : 309,924 = 309,924 : x
2. Step 2: Convert to fraction form
   140,562/309,924 = 309,924/x
3. Step 3: Cross multiply
   140,562x = 309,924 × 309,924
4. Step 4: Simplify right side
   140,562x = 96,052,885,776
5. Step 5: Solve for x
   x = 96,052,885,776/140,562
6. Step 6: Final answer
   x = 683,348.88