Finding the Third Proportional to 231,975 and 359,187

Step by Step Solution

1. Step 1: Write the proportion equation
   231,975 : 359,187 = 359,187 : x
2. Step 2: Convert to fraction form
   231,975/359,187 = 359,187/x
3. Step 3: Cross multiply
   231,975x = 359,187 × 359,187
4. Step 4: Simplify right side
   231,975x = 129,015,300,969
5. Step 5: Solve for x
   x = 129,015,300,969/231,975
6. Step 6: Final answer
   x = 556,160.37