Finding the Third Proportional to 74,415.50 and 111,788.50

Step by Step Solution

1. Step 1: Write the proportion equation
   74,415.50 : 111,788.50 = 111,788.50 : x
2. Step 2: Convert to fraction form
   74,415.50/111,788.50 = 111,788.50/x
3. Step 3: Cross multiply
   74,415.50x = 111,788.50 × 111,788.50
4. Step 4: Simplify right side
   74,415.50x = 12,496,668,732.25
5. Step 5: Solve for x
   x = 12,496,668,732.25/74,415.50
6. Step 6: Final answer
   x = 167,930.99