Finding the Third Proportional to 231,312 and 504,540

Step by Step Solution

1. Step 1: Write the proportion equation
   231,312 : 504,540 = 504,540 : x
2. Step 2: Convert to fraction form
   231,312/504,540 = 504,540/x
3. Step 3: Cross multiply
   231,312x = 504,540 × 504,540
4. Step 4: Simplify right side
   231,312x = 254,560,611,600
5. Step 5: Solve for x
   x = 254,560,611,600/231,312
6. Step 6: Final answer
   x = 1,100,507.59