Finding the Third Proportional to 66,758.50 and 142,994

Step by Step Solution

1. Step 1: Write the proportion equation
   66,758.50 : 142,994 = 142,994 : x
2. Step 2: Convert to fraction form
   66,758.50/142,994 = 142,994/x
3. Step 3: Cross multiply
   66,758.50x = 142,994 × 142,994
4. Step 4: Simplify right side
   66,758.50x = 20,447,284,036
5. Step 5: Solve for x
   x = 20,447,284,036/66,758.50
6. Step 6: Final answer
   x = 306,287.35