Finding the Third Proportional to 64,404.56 and 140,250.38

Step by Step Solution

1. Step 1: Write the proportion equation
   64,404.56 : 140,250.38 = 140,250.38 : x
2. Step 2: Convert to fraction form
   64,404.56/140,250.38 = 140,250.38/x
3. Step 3: Cross multiply
   64,404.56x = 140,250.38 × 140,250.38
4. Step 4: Simplify right side
   64,404.56x = 19,670,167,687.64
5. Step 5: Solve for x
   x = 19,670,167,687.64/64,404.56
6. Step 6: Final answer
   x = 305,415.75