Finding the Third Proportional to 28,540.50 and 63,642

Step by Step Solution

1. Step 1: Write the proportion equation
   28,540.50 : 63,642 = 63,642 : x
2. Step 2: Convert to fraction form
   28,540.50/63,642 = 63,642/x
3. Step 3: Cross multiply
   28,540.50x = 63,642 × 63,642
4. Step 4: Simplify right side
   28,540.50x = 4,050,304,164
5. Step 5: Solve for x
   x = 4,050,304,164/28,540.50
6. Step 6: Final answer
   x = 141,914.27