Finding the Third Proportional to 65,140.75 and 142,751

Step by Step Solution

1. Step 1: Write the proportion equation
   65,140.75 : 142,751 = 142,751 : x
2. Step 2: Convert to fraction form
   65,140.75/142,751 = 142,751/x
3. Step 3: Cross multiply
   65,140.75x = 142,751 × 142,751
4. Step 4: Simplify right side
   65,140.75x = 20,377,848,001
5. Step 5: Solve for x
   x = 20,377,848,001/65,140.75
6. Step 6: Final answer
   x = 312,827.96