Finding the Third Proportional to 68,565 and 103,578.50

Step by Step Solution

1. Step 1: Write the proportion equation
   68,565 : 103,578.50 = 103,578.50 : x
2. Step 2: Convert to fraction form
   68,565/103,578.50 = 103,578.50/x
3. Step 3: Cross multiply
   68,565x = 103,578.50 × 103,578.50
4. Step 4: Simplify right side
   68,565x = 10,728,505,662.25
5. Step 5: Solve for x
   x = 10,728,505,662.25/68,565
6. Step 6: Final answer
   x = 156,472.04