Finding the Third Proportional to 65,103.75 and 142,672.50

Step by Step Solution

1. Step 1: Write the proportion equation
   65,103.75 : 142,672.50 = 142,672.50 : x
2. Step 2: Convert to fraction form
   65,103.75/142,672.50 = 142,672.50/x
3. Step 3: Cross multiply
   65,103.75x = 142,672.50 × 142,672.50
4. Step 4: Simplify right side
   65,103.75x = 20,355,442,256.25
5. Step 5: Solve for x
   x = 20,355,442,256.25/65,103.75
6. Step 6: Final answer
   x = 312,661.59