Finding the Third Proportional to 87,125 and 189,003

Step by Step Solution

1. Step 1: Write the proportion equation
   87,125 : 189,003 = 189,003 : x
2. Step 2: Convert to fraction form
   87,125/189,003 = 189,003/x
3. Step 3: Cross multiply
   87,125x = 189,003 × 189,003
4. Step 4: Simplify right side
   87,125x = 35,722,134,009
5. Step 5: Solve for x
   x = 35,722,134,009/87,125
6. Step 6: Final answer
   x = 410,010.15