Finding the Third Proportional to 89,251.50 and 131,409

Step by Step Solution

1. Step 1: Write the proportion equation
   89,251.50 : 131,409 = 131,409 : x
2. Step 2: Convert to fraction form
   89,251.50/131,409 = 131,409/x
3. Step 3: Cross multiply
   89,251.50x = 131,409 × 131,409
4. Step 4: Simplify right side
   89,251.50x = 17,268,325,281
5. Step 5: Solve for x
   x = 17,268,325,281/89,251.50
6. Step 6: Final answer
   x = 193,479.38