Finding the Third Proportional to 385,574 and 835,510

Step by Step Solution

1. Step 1: Write the proportion equation
   385,574 : 835,510 = 835,510 : x
2. Step 2: Convert to fraction form
   385,574/835,510 = 835,510/x
3. Step 3: Cross multiply
   385,574x = 835,510 × 835,510
4. Step 4: Simplify right side
   385,574x = 698,076,960,100
5. Step 5: Solve for x
   x = 698,076,960,100/385,574
6. Step 6: Final answer
   x = 1,810,487.64