Finding the Third Proportional to 72,360 and 113,172

Step by Step Solution

1. Step 1: Write the proportion equation
   72,360 : 113,172 = 113,172 : x
2. Step 2: Convert to fraction form
   72,360/113,172 = 113,172/x
3. Step 3: Cross multiply
   72,360x = 113,172 × 113,172
4. Step 4: Simplify right side
   72,360x = 12,807,901,584
5. Step 5: Solve for x
   x = 12,807,901,584/72,360
6. Step 6: Final answer
   x = 177,002.51