Finding the Third Proportional to 287,456 and 604,704

Step by Step Solution

1. Step 1: Write the proportion equation
   287,456 : 604,704 = 604,704 : x
2. Step 2: Convert to fraction form
   287,456/604,704 = 604,704/x
3. Step 3: Cross multiply
   287,456x = 604,704 × 604,704
4. Step 4: Simplify right side
   287,456x = 365,666,927,616
5. Step 5: Solve for x
   x = 365,666,927,616/287,456
6. Step 6: Final answer
   x = 1,272,079.65