Finding the Third Proportional to 72,000 and 112,072.50

Step by Step Solution

1. Step 1: Write the proportion equation
   72,000 : 112,072.50 = 112,072.50 : x
2. Step 2: Convert to fraction form
   72,000/112,072.50 = 112,072.50/x
3. Step 3: Cross multiply
   72,000x = 112,072.50 × 112,072.50
4. Step 4: Simplify right side
   72,000x = 12,560,245,256.25
5. Step 5: Solve for x
   x = 12,560,245,256.25/72,000
6. Step 6: Final answer
   x = 174,447.85