Finding the Third Proportional to 72,749 and 108,030

Step by Step Solution

1. Step 1: Write the proportion equation
   72,749 : 108,030 = 108,030 : x
2. Step 2: Convert to fraction form
   72,749/108,030 = 108,030/x
3. Step 3: Cross multiply
   72,749x = 108,030 × 108,030
4. Step 4: Simplify right side
   72,749x = 11,670,480,900
5. Step 5: Solve for x
   x = 11,670,480,900/72,749
6. Step 6: Final answer
   x = 160,421.19