Finding the Third Proportional to 87,672 and 205,308

Step by Step Solution

1. Step 1: Write the proportion equation
   87,672 : 205,308 = 205,308 : x
2. Step 2: Convert to fraction form
   87,672/205,308 = 205,308/x
3. Step 3: Cross multiply
   87,672x = 205,308 × 205,308
4. Step 4: Simplify right side
   87,672x = 42,151,374,864
5. Step 5: Solve for x
   x = 42,151,374,864/87,672
6. Step 6: Final answer
   x = 480,784.91