Finding the Third Proportional to 196,020 and 429,400

Step by Step Solution

1. Step 1: Write the proportion equation
   196,020 : 429,400 = 429,400 : x
2. Step 2: Convert to fraction form
   196,020/429,400 = 429,400/x
3. Step 3: Cross multiply
   196,020x = 429,400 × 429,400
4. Step 4: Simplify right side
   196,020x = 184,384,360,000
5. Step 5: Solve for x
   x = 184,384,360,000/196,020
6. Step 6: Final answer
   x = 940,640.55