Finding the Third Proportional to 287,469 and 604,732.50

Step by Step Solution

1. Step 1: Write the proportion equation
   287,469 : 604,732.50 = 604,732.50 : x
2. Step 2: Convert to fraction form
   287,469/604,732.50 = 604,732.50/x
3. Step 3: Cross multiply
   287,469x = 604,732.50 × 604,732.50
4. Step 4: Simplify right side
   287,469x = 365,701,396,556.25
5. Step 5: Solve for x
   x = 365,701,396,556.25/287,469
6. Step 6: Final answer
   x = 1,272,142.03