Finding the Third Proportional to 89,644 and 130,260

Step by Step Solution

1. Step 1: Write the proportion equation
   89,644 : 130,260 = 130,260 : x
2. Step 2: Convert to fraction form
   89,644/130,260 = 130,260/x
3. Step 3: Cross multiply
   89,644x = 130,260 × 130,260
4. Step 4: Simplify right side
   89,644x = 16,967,667,600
5. Step 5: Solve for x
   x = 16,967,667,600/89,644
6. Step 6: Final answer
   x = 189,278.34