Finding the Third Proportional to 72,272.25 and 111,226.50

Step by Step Solution

1. Step 1: Write the proportion equation
   72,272.25 : 111,226.50 = 111,226.50 : x
2. Step 2: Convert to fraction form
   72,272.25/111,226.50 = 111,226.50/x
3. Step 3: Cross multiply
   72,272.25x = 111,226.50 × 111,226.50
4. Step 4: Simplify right side
   72,272.25x = 12,371,334,302.25
5. Step 5: Solve for x
   x = 12,371,334,302.25/72,272.25
6. Step 6: Final answer
   x = 171,176.83