Finding the Third Proportional to 42,488 and 67,481.50

Step by Step Solution

1. Step 1: Write the proportion equation
   42,488 : 67,481.50 = 67,481.50 : x
2. Step 2: Convert to fraction form
   42,488/67,481.50 = 67,481.50/x
3. Step 3: Cross multiply
   42,488x = 67,481.50 × 67,481.50
4. Step 4: Simplify right side
   42,488x = 4,553,752,842.25
5. Step 5: Solve for x
   x = 4,553,752,842.25/42,488
6. Step 6: Final answer
   x = 107,177.39