Finding the Third Proportional to 72,276 and 111,232.50

Step by Step Solution

1. Step 1: Write the proportion equation
   72,276 : 111,232.50 = 111,232.50 : x
2. Step 2: Convert to fraction form
   72,276/111,232.50 = 111,232.50/x
3. Step 3: Cross multiply
   72,276x = 111,232.50 × 111,232.50
4. Step 4: Simplify right side
   72,276x = 12,372,669,056.25
5. Step 5: Solve for x
   x = 12,372,669,056.25/72,276
6. Step 6: Final answer
   x = 171,186.41