Finding the Third Proportional to 65,947.50 and 144,535.50

Step by Step Solution

1. Step 1: Write the proportion equation
   65,947.50 : 144,535.50 = 144,535.50 : x
2. Step 2: Convert to fraction form
   65,947.50/144,535.50 = 144,535.50/x
3. Step 3: Cross multiply
   65,947.50x = 144,535.50 × 144,535.50
4. Step 4: Simplify right side
   65,947.50x = 20,890,510,760.25
5. Step 5: Solve for x
   x = 20,890,510,760.25/65,947.50
6. Step 6: Final answer
   x = 316,774.87