Finding the Third Proportional to 411,549 and 587,386.50

Step by Step Solution

1. Step 1: Write the proportion equation
   411,549 : 587,386.50 = 587,386.50 : x
2. Step 2: Convert to fraction form
   411,549/587,386.50 = 587,386.50/x
3. Step 3: Cross multiply
   411,549x = 587,386.50 × 587,386.50
4. Step 4: Simplify right side
   411,549x = 345,022,900,382.25
5. Step 5: Solve for x
   x = 345,022,900,382.25/411,549
6. Step 6: Final answer
   x = 838,351.93