Finding the Third Proportional to 323,705 and 694,066

Step by Step Solution

1. Step 1: Write the proportion equation
   323,705 : 694,066 = 694,066 : x
2. Step 2: Convert to fraction form
   323,705/694,066 = 694,066/x
3. Step 3: Cross multiply
   323,705x = 694,066 × 694,066
4. Step 4: Simplify right side
   323,705x = 481,727,612,356
5. Step 5: Solve for x
   x = 481,727,612,356/323,705
6. Step 6: Final answer
   x = 1,488,168.59