Finding the Third Proportional to 87,105 and 190,818

Step by Step Solution

1. Step 1: Write the proportion equation
   87,105 : 190,818 = 190,818 : x
2. Step 2: Convert to fraction form
   87,105/190,818 = 190,818/x
3. Step 3: Cross multiply
   87,105x = 190,818 × 190,818
4. Step 4: Simplify right side
   87,105x = 36,411,509,124
5. Step 5: Solve for x
   x = 36,411,509,124/87,105
6. Step 6: Final answer
   x = 418,018.59