Finding the Third Proportional to 88,066 and 189,956

Step by Step Solution

1. Step 1: Write the proportion equation
   88,066 : 189,956 = 189,956 : x
2. Step 2: Convert to fraction form
   88,066/189,956 = 189,956/x
3. Step 3: Cross multiply
   88,066x = 189,956 × 189,956
4. Step 4: Simplify right side
   88,066x = 36,083,281,936
5. Step 5: Solve for x
   x = 36,083,281,936/88,066
6. Step 6: Final answer
   x = 409,730.00