Finding the Third Proportional to 72,605.25 and 112,155.75

Step by Step Solution

1. Step 1: Write the proportion equation
   72,605.25 : 112,155.75 = 112,155.75 : x
2. Step 2: Convert to fraction form
   72,605.25/112,155.75 = 112,155.75/x
3. Step 3: Cross multiply
   72,605.25x = 112,155.75 × 112,155.75
4. Step 4: Simplify right side
   72,605.25x = 12,578,912,258.06
5. Step 5: Solve for x
   x = 12,578,912,258.06/72,605.25
6. Step 6: Final answer
   x = 173,250.73