Finding the Third Proportional to 393,922 and 573,662

Step by Step Solution

1. Step 1: Write the proportion equation
   393,922 : 573,662 = 573,662 : x
2. Step 2: Convert to fraction form
   393,922/573,662 = 573,662/x
3. Step 3: Cross multiply
   393,922x = 573,662 × 573,662
4. Step 4: Simplify right side
   393,922x = 329,088,090,244
5. Step 5: Solve for x
   x = 329,088,090,244/393,922
6. Step 6: Final answer
   x = 835,414.35