Finding the Third Proportional to 30,763.50 and 66,241.50

Step by Step Solution

1. Step 1: Write the proportion equation
   30,763.50 : 66,241.50 = 66,241.50 : x
2. Step 2: Convert to fraction form
   30,763.50/66,241.50 = 66,241.50/x
3. Step 3: Cross multiply
   30,763.50x = 66,241.50 × 66,241.50
4. Step 4: Simplify right side
   30,763.50x = 4,387,936,322.25
5. Step 5: Solve for x
   x = 4,387,936,322.25/30,763.50
6. Step 6: Final answer
   x = 142,634.50