Finding the Third Proportional to 551,353.50 and 835,344

Step by Step Solution

1. Step 1: Write the proportion equation
   551,353.50 : 835,344 = 835,344 : x
2. Step 2: Convert to fraction form
   551,353.50/835,344 = 835,344/x
3. Step 3: Cross multiply
   551,353.50x = 835,344 × 835,344
4. Step 4: Simplify right side
   551,353.50x = 697,799,598,336
5. Step 5: Solve for x
   x = 697,799,598,336/551,353.50
6. Step 6: Final answer
   x = 1,265,611.99