Finding the Third Proportional to 236,567 and 354,499

Step by Step Solution

1. Step 1: Write the proportion equation
   236,567 : 354,499 = 354,499 : x
2. Step 2: Convert to fraction form
   236,567/354,499 = 354,499/x
3. Step 3: Cross multiply
   236,567x = 354,499 × 354,499
4. Step 4: Simplify right side
   236,567x = 125,669,541,001
5. Step 5: Solve for x
   x = 125,669,541,001/236,567
6. Step 6: Final answer
   x = 531,221.77