Finding the Third Proportional to 72,360 and 111,288.38

Step by Step Solution

1. Step 1: Write the proportion equation
   72,360 : 111,288.38 = 111,288.38 : x
2. Step 2: Convert to fraction form
   72,360/111,288.38 = 111,288.38/x
3. Step 3: Cross multiply
   72,360x = 111,288.38 × 111,288.38
4. Step 4: Simplify right side
   72,360x = 12,385,102,410.14
5. Step 5: Solve for x
   x = 12,385,102,410.14/72,360
6. Step 6: Final answer
   x = 171,159.51