Finding the Third Proportional to 72,712 and 154,212

Step by Step Solution

1. Step 1: Write the proportion equation
   72,712 : 154,212 = 154,212 : x
2. Step 2: Convert to fraction form
   72,712/154,212 = 154,212/x
3. Step 3: Cross multiply
   72,712x = 154,212 × 154,212
4. Step 4: Simplify right side
   72,712x = 23,781,340,944
5. Step 5: Solve for x
   x = 23,781,340,944/72,712
6. Step 6: Final answer
   x = 327,062.12