Finding the Third Proportional to 128,049 and 187,151.25

Step by Step Solution

1. Step 1: Write the proportion equation
   128,049 : 187,151.25 = 187,151.25 : x
2. Step 2: Convert to fraction form
   128,049/187,151.25 = 187,151.25/x
3. Step 3: Cross multiply
   128,049x = 187,151.25 × 187,151.25
4. Step 4: Simplify right side
   128,049x = 35,025,590,376.56
5. Step 5: Solve for x
   x = 35,025,590,376.56/128,049
6. Step 6: Final answer
   x = 273,532.71