Finding the Third Proportional to 42,560 and 67,359.50

Step by Step Solution

1. Step 1: Write the proportion equation
   42,560 : 67,359.50 = 67,359.50 : x
2. Step 2: Convert to fraction form
   42,560/67,359.50 = 67,359.50/x
3. Step 3: Cross multiply
   42,560x = 67,359.50 × 67,359.50
4. Step 4: Simplify right side
   42,560x = 4,537,302,240.25
5. Step 5: Solve for x
   x = 4,537,302,240.25/42,560
6. Step 6: Final answer
   x = 106,609.55