Finding the Third Proportional to 28,960.88 and 67,657.50

Step by Step Solution

1. Step 1: Write the proportion equation
   28,960.88 : 67,657.50 = 67,657.50 : x
2. Step 2: Convert to fraction form
   28,960.88/67,657.50 = 67,657.50/x
3. Step 3: Cross multiply
   28,960.88x = 67,657.50 × 67,657.50
4. Step 4: Simplify right side
   28,960.88x = 4,577,537,306.25
5. Step 5: Solve for x
   x = 4,577,537,306.25/28,960.88
6. Step 6: Final answer
   x = 158,059.36