Finding the Third Proportional to 315,036 and 492,810

Step by Step Solution

1. Step 1: Write the proportion equation
   315,036 : 492,810 = 492,810 : x
2. Step 2: Convert to fraction form
   315,036/492,810 = 492,810/x
3. Step 3: Cross multiply
   315,036x = 492,810 × 492,810
4. Step 4: Simplify right side
   315,036x = 242,861,696,100
5. Step 5: Solve for x
   x = 242,861,696,100/315,036
6. Step 6: Final answer
   x = 770,901.41