Finding the Third Proportional to 88,600 and 189,494

Step by Step Solution

1. Step 1: Write the proportion equation
   88,600 : 189,494 = 189,494 : x
2. Step 2: Convert to fraction form
   88,600/189,494 = 189,494/x
3. Step 3: Cross multiply
   88,600x = 189,494 × 189,494
4. Step 4: Simplify right side
   88,600x = 35,907,976,036
5. Step 5: Solve for x
   x = 35,907,976,036/88,600
6. Step 6: Final answer
   x = 405,281.90