Finding the Third Proportional to 64,849.75 and 142,001.25

Step by Step Solution

1. Step 1: Write the proportion equation
   64,849.75 : 142,001.25 = 142,001.25 : x
2. Step 2: Convert to fraction form
   64,849.75/142,001.25 = 142,001.25/x
3. Step 3: Cross multiply
   64,849.75x = 142,001.25 × 142,001.25
4. Step 4: Simplify right side
   64,849.75x = 20,164,355,001.56
5. Step 5: Solve for x
   x = 20,164,355,001.56/64,849.75
6. Step 6: Final answer
   x = 310,939.60