Finding the Third Proportional to 287,468 and 604,724

Step by Step Solution

1. Step 1: Write the proportion equation
   287,468 : 604,724 = 604,724 : x
2. Step 2: Convert to fraction form
   287,468/604,724 = 604,724/x
3. Step 3: Cross multiply
   287,468x = 604,724 × 604,724
4. Step 4: Simplify right side
   287,468x = 365,691,116,176
5. Step 5: Solve for x
   x = 365,691,116,176/287,468
6. Step 6: Final answer
   x = 1,272,110.69