Finding the Third Proportional to 309,098.25 and 659,025

Step by Step Solution

1. Step 1: Write the proportion equation
   309,098.25 : 659,025 = 659,025 : x
2. Step 2: Convert to fraction form
   309,098.25/659,025 = 659,025/x
3. Step 3: Cross multiply
   309,098.25x = 659,025 × 659,025
4. Step 4: Simplify right side
   309,098.25x = 434,313,950,625
5. Step 5: Solve for x
   x = 434,313,950,625/309,098.25
6. Step 6: Final answer
   x = 1,405,100.00