Finding the Third Proportional to 309,276 and 659,050

Step by Step Solution

1. Step 1: Write the proportion equation
   309,276 : 659,050 = 659,050 : x
2. Step 2: Convert to fraction form
   309,276/659,050 = 659,050/x
3. Step 3: Cross multiply
   309,276x = 659,050 × 659,050
4. Step 4: Simplify right side
   309,276x = 434,346,902,500
5. Step 5: Solve for x
   x = 434,346,902,500/309,276
6. Step 6: Final answer
   x = 1,404,398.99