Finding the Third Proportional to 85,186 and 185,240

Step by Step Solution

1. Step 1: Write the proportion equation
   85,186 : 185,240 = 185,240 : x
2. Step 2: Convert to fraction form
   85,186/185,240 = 185,240/x
3. Step 3: Cross multiply
   85,186x = 185,240 × 185,240
4. Step 4: Simplify right side
   85,186x = 34,313,857,600
5. Step 5: Solve for x
   x = 34,313,857,600/85,186
6. Step 6: Final answer
   x = 402,811.00