Finding the Third Proportional to 238,830 and 503,580

Step by Step Solution

1. Step 1: Write the proportion equation
   238,830 : 503,580 = 503,580 : x
2. Step 2: Convert to fraction form
   238,830/503,580 = 503,580/x
3. Step 3: Cross multiply
   238,830x = 503,580 × 503,580
4. Step 4: Simplify right side
   238,830x = 253,592,816,400
5. Step 5: Solve for x
   x = 253,592,816,400/238,830
6. Step 6: Final answer
   x = 1,061,813.07