Finding the Third Proportional to 72,357 and 111,814.50

Step by Step Solution

1. Step 1: Write the proportion equation
   72,357 : 111,814.50 = 111,814.50 : x
2. Step 2: Convert to fraction form
   72,357/111,814.50 = 111,814.50/x
3. Step 3: Cross multiply
   72,357x = 111,814.50 × 111,814.50
4. Step 4: Simplify right side
   72,357x = 12,502,482,410.25
5. Step 5: Solve for x
   x = 12,502,482,410.25/72,357
6. Step 6: Final answer
   x = 172,788.84