Finding the Third Proportional to 400,698 and 846,108

Step by Step Solution

1. Step 1: Write the proportion equation
   400,698 : 846,108 = 846,108 : x
2. Step 2: Convert to fraction form
   400,698/846,108 = 846,108/x
3. Step 3: Cross multiply
   400,698x = 846,108 × 846,108
4. Step 4: Simplify right side
   400,698x = 715,898,747,664
5. Step 5: Solve for x
   x = 715,898,747,664/400,698
6. Step 6: Final answer
   x = 1,786,629.20