Finding the Third Proportional to 90,573 and 196,707

Step by Step Solution

1. Step 1: Write the proportion equation
   90,573 : 196,707 = 196,707 : x
2. Step 2: Convert to fraction form
   90,573/196,707 = 196,707/x
3. Step 3: Cross multiply
   90,573x = 196,707 × 196,707
4. Step 4: Simplify right side
   90,573x = 38,693,643,849
5. Step 5: Solve for x
   x = 38,693,643,849/90,573
6. Step 6: Final answer
   x = 427,209.48