Finding the Third Proportional to 131,322.50 and 256,081

Step by Step Solution

1. Step 1: Write the proportion equation
   131,322.50 : 256,081 = 256,081 : x
2. Step 2: Convert to fraction form
   131,322.50/256,081 = 256,081/x
3. Step 3: Cross multiply
   131,322.50x = 256,081 × 256,081
4. Step 4: Simplify right side
   131,322.50x = 65,577,478,561
5. Step 5: Solve for x
   x = 65,577,478,561/131,322.50
6. Step 6: Final answer
   x = 499,362.09