Finding the Third Proportional to 65,875.50 and 144,870.75

Step by Step Solution

1. Step 1: Write the proportion equation
   65,875.50 : 144,870.75 = 144,870.75 : x
2. Step 2: Convert to fraction form
   65,875.50/144,870.75 = 144,870.75/x
3. Step 3: Cross multiply
   65,875.50x = 144,870.75 × 144,870.75
4. Step 4: Simplify right side
   65,875.50x = 20,987,534,205.56
5. Step 5: Solve for x
   x = 20,987,534,205.56/65,875.50
6. Step 6: Final answer
   x = 318,593.93