Finding the Third Proportional to 287,581 and 604,900

Step by Step Solution

1. Step 1: Write the proportion equation
   287,581 : 604,900 = 604,900 : x
2. Step 2: Convert to fraction form
   287,581/604,900 = 604,900/x
3. Step 3: Cross multiply
   287,581x = 604,900 × 604,900
4. Step 4: Simplify right side
   287,581x = 365,904,010,000
5. Step 5: Solve for x
   x = 365,904,010,000/287,581
6. Step 6: Final answer
   x = 1,272,351.13