Finding the Third Proportional to 231,957 and 359,160

Step by Step Solution

1. Step 1: Write the proportion equation
   231,957 : 359,160 = 359,160 : x
2. Step 2: Convert to fraction form
   231,957/359,160 = 359,160/x
3. Step 3: Cross multiply
   231,957x = 359,160 × 359,160
4. Step 4: Simplify right side
   231,957x = 128,995,905,600
5. Step 5: Solve for x
   x = 128,995,905,600/231,957
6. Step 6: Final answer
   x = 556,119.91