Finding the Third Proportional to 184,786 and 399,116

Step by Step Solution

1. Step 1: Write the proportion equation
   184,786 : 399,116 = 399,116 : x
2. Step 2: Convert to fraction form
   184,786/399,116 = 399,116/x
3. Step 3: Cross multiply
   184,786x = 399,116 × 399,116
4. Step 4: Simplify right side
   184,786x = 159,293,581,456
5. Step 5: Solve for x
   x = 159,293,581,456/184,786
6. Step 6: Final answer
   x = 862,043.56