Finding the Third Proportional to 231,326 and 337,143

Step by Step Solution

1. Step 1: Write the proportion equation
   231,326 : 337,143 = 337,143 : x
2. Step 2: Convert to fraction form
   231,326/337,143 = 337,143/x
3. Step 3: Cross multiply
   231,326x = 337,143 × 337,143
4. Step 4: Simplify right side
   231,326x = 113,665,402,449
5. Step 5: Solve for x
   x = 113,665,402,449/231,326
6. Step 6: Final answer
   x = 491,364.58