Finding the Third Proportional to 231,034 and 354,900

Step by Step Solution

1. Step 1: Write the proportion equation
   231,034 : 354,900 = 354,900 : x
2. Step 2: Convert to fraction form
   231,034/354,900 = 354,900/x
3. Step 3: Cross multiply
   231,034x = 354,900 × 354,900
4. Step 4: Simplify right side
   231,034x = 125,954,010,000
5. Step 5: Solve for x
   x = 125,954,010,000/231,034
6. Step 6: Final answer
   x = 545,175.21