Finding the Third Proportional to 196,885 and 429,860

Step by Step Solution

1. Step 1: Write the proportion equation
   196,885 : 429,860 = 429,860 : x
2. Step 2: Convert to fraction form
   196,885/429,860 = 429,860/x
3. Step 3: Cross multiply
   196,885x = 429,860 × 429,860
4. Step 4: Simplify right side
   196,885x = 184,779,619,600
5. Step 5: Solve for x
   x = 184,779,619,600/196,885
6. Step 6: Final answer
   x = 938,515.48