Finding the Third Proportional to 88,587 and 189,000

Step by Step Solution

1. Step 1: Write the proportion equation
   88,587 : 189,000 = 189,000 : x
2. Step 2: Convert to fraction form
   88,587/189,000 = 189,000/x
3. Step 3: Cross multiply
   88,587x = 189,000 × 189,000
4. Step 4: Simplify right side
   88,587x = 35,721,000,000
5. Step 5: Solve for x
   x = 35,721,000,000/88,587
6. Step 6: Final answer
   x = 403,230.72