Finding the Third Proportional to 846,857 and 1,816,510

Step by Step Solution

1. Step 1: Write the proportion equation
   846,857 : 1,816,510 = 1,816,510 : x
2. Step 2: Convert to fraction form
   846,857/1,816,510 = 1,816,510/x
3. Step 3: Cross multiply
   846,857x = 1,816,510 × 1,816,510
4. Step 4: Simplify right side
   846,857x = 3,299,708,580,100
5. Step 5: Solve for x
   x = 3,299,708,580,100/846,857
6. Step 6: Final answer
   x = 3,896,417.67