Finding the Third Proportional to 323,685 and 490,025.25

Step by Step Solution

1. Step 1: Write the proportion equation
   323,685 : 490,025.25 = 490,025.25 : x
2. Step 2: Convert to fraction form
   323,685/490,025.25 = 490,025.25/x
3. Step 3: Cross multiply
   323,685x = 490,025.25 × 490,025.25
4. Step 4: Simplify right side
   323,685x = 240,124,745,637.56
5. Step 5: Solve for x
   x = 240,124,745,637.56/323,685
6. Step 6: Final answer
   x = 741,847.00