Finding the Third Proportional to 87,600 and 191,996

Step by Step Solution

1. Step 1: Write the proportion equation
   87,600 : 191,996 = 191,996 : x
2. Step 2: Convert to fraction form
   87,600/191,996 = 191,996/x
3. Step 3: Cross multiply
   87,600x = 191,996 × 191,996
4. Step 4: Simplify right side
   87,600x = 36,862,464,016
5. Step 5: Solve for x
   x = 36,862,464,016/87,600
6. Step 6: Final answer
   x = 420,804.38