Finding the Third Proportional to 87,488 and 185,912

Step by Step Solution

1. Step 1: Write the proportion equation
   87,488 : 185,912 = 185,912 : x
2. Step 2: Convert to fraction form
   87,488/185,912 = 185,912/x
3. Step 3: Cross multiply
   87,488x = 185,912 × 185,912
4. Step 4: Simplify right side
   87,488x = 34,563,271,744
5. Step 5: Solve for x
   x = 34,563,271,744/87,488
6. Step 6: Final answer
   x = 395,063