Finding the Third Proportional to 68,257 and 103,339.50

Step by Step Solution

1. Step 1: Write the proportion equation
   68,257 : 103,339.50 = 103,339.50 : x
2. Step 2: Convert to fraction form
   68,257/103,339.50 = 103,339.50/x
3. Step 3: Cross multiply
   68,257x = 103,339.50 × 103,339.50
4. Step 4: Simplify right side
   68,257x = 10,679,052,260.25
5. Step 5: Solve for x
   x = 10,679,052,260.25/68,257
6. Step 6: Final answer
   x = 156,453.58