Finding the Third Proportional to 28,899 and 67,144.50

Step by Step Solution

1. Step 1: Write the proportion equation
   28,899 : 67,144.50 = 67,144.50 : x
2. Step 2: Convert to fraction form
   28,899/67,144.50 = 67,144.50/x
3. Step 3: Cross multiply
   28,899x = 67,144.50 × 67,144.50
4. Step 4: Simplify right side
   28,899x = 4,508,383,880.25
5. Step 5: Solve for x
   x = 4,508,383,880.25/28,899
6. Step 6: Final answer
   x = 156,004.84