Finding the Third Proportional to 384,510 and 843,900

Step by Step Solution

1. Step 1: Write the proportion equation
   384,510 : 843,900 = 843,900 : x
2. Step 2: Convert to fraction form
   384,510/843,900 = 843,900/x
3. Step 3: Cross multiply
   384,510x = 843,900 × 843,900
4. Step 4: Simplify right side
   384,510x = 712,167,210,000
5. Step 5: Solve for x
   x = 712,167,210,000/384,510
6. Step 6: Final answer
   x = 1,852,142.23