Finding the Third Proportional to 231,628 and 503,108

Step by Step Solution

1. Step 1: Write the proportion equation
   231,628 : 503,108 = 503,108 : x
2. Step 2: Convert to fraction form
   231,628/503,108 = 503,108/x
3. Step 3: Cross multiply
   231,628x = 503,108 × 503,108
4. Step 4: Simplify right side
   231,628x = 253,117,659,664
5. Step 5: Solve for x
   x = 253,117,659,664/231,628
6. Step 6: Final answer
   x = 1,092,776.61