Finding the Third Proportional to 196,886 and 429,858

Step by Step Solution

1. Step 1: Write the proportion equation
   196,886 : 429,858 = 429,858 : x
2. Step 2: Convert to fraction form
   196,886/429,858 = 429,858/x
3. Step 3: Cross multiply
   196,886x = 429,858 × 429,858
4. Step 4: Simplify right side
   196,886x = 184,777,900,164
5. Step 5: Solve for x
   x = 184,777,900,164/196,886
6. Step 6: Final answer
   x = 938,501.98