Finding the Third Proportional to 72,712 and 111,184

Step by Step Solution

1. Step 1: Write the proportion equation
   72,712 : 111,184 = 111,184 : x
2. Step 2: Convert to fraction form
   72,712/111,184 = 111,184/x
3. Step 3: Cross multiply
   72,712x = 111,184 × 111,184
4. Step 4: Simplify right side
   72,712x = 12,361,881,856
5. Step 5: Solve for x
   x = 12,361,881,856/72,712
6. Step 6: Final answer
   x = 170,011.58