Finding the Third Proportional to 66,496.50 and 144,063

Step by Step Solution

1. Step 1: Write the proportion equation
   66,496.50 : 144,063 = 144,063 : x
2. Step 2: Convert to fraction form
   66,496.50/144,063 = 144,063/x
3. Step 3: Cross multiply
   66,496.50x = 144,063 × 144,063
4. Step 4: Simplify right side
   66,496.50x = 20,754,147,969
5. Step 5: Solve for x
   x = 20,754,147,969/66,496.50
6. Step 6: Final answer
   x = 312,108.88