Finding the Third Proportional to 287,570 and 604,884

Step by Step Solution

1. Step 1: Write the proportion equation
   287,570 : 604,884 = 604,884 : x
2. Step 2: Convert to fraction form
   287,570/604,884 = 604,884/x
3. Step 3: Cross multiply
   287,570x = 604,884 × 604,884
4. Step 4: Simplify right side
   287,570x = 365,884,653,456
5. Step 5: Solve for x
   x = 365,884,653,456/287,570
6. Step 6: Final answer
   x = 1,272,332.49