Finding the Third Proportional to 66,559.50 and 144,783

Step by Step Solution

1. Step 1: Write the proportion equation
   66,559.50 : 144,783 = 144,783 : x
2. Step 2: Convert to fraction form
   66,559.50/144,783 = 144,783/x
3. Step 3: Cross multiply
   66,559.50x = 144,783 × 144,783
4. Step 4: Simplify right side
   66,559.50x = 20,962,117,089
5. Step 5: Solve for x
   x = 20,962,117,089/66,559.50
6. Step 6: Final answer
   x = 314,938.02