Finding the Third Proportional to 186,932 and 400,108

Step by Step Solution

1. Step 1: Write the proportion equation
   186,932 : 400,108 = 400,108 : x
2. Step 2: Convert to fraction form
   186,932/400,108 = 400,108/x
3. Step 3: Cross multiply
   186,932x = 400,108 × 400,108
4. Step 4: Simplify right side
   186,932x = 160,086,411,664
5. Step 5: Solve for x
   x = 160,086,411,664/186,932
6. Step 6: Final answer
   x = 856,388.48