Finding the Third Proportional to 72,578.25 and 112,147.88

Step by Step Solution

1. Step 1: Write the proportion equation
   72,578.25 : 112,147.88 = 112,147.88 : x
2. Step 2: Convert to fraction form
   72,578.25/112,147.88 = 112,147.88/x
3. Step 3: Cross multiply
   72,578.25x = 112,147.88 × 112,147.88
4. Step 4: Simplify right side
   72,578.25x = 12,577,145,867.02
5. Step 5: Solve for x
   x = 12,577,145,867.02/72,578.25
6. Step 6: Final answer
   x = 173,290.84