Finding the Third Proportional to 72,499 and 159,712

Step by Step Solution

1. Step 1: Write the proportion equation
   72,499 : 159,712 = 159,712 : x
2. Step 2: Convert to fraction form
   72,499/159,712 = 159,712/x
3. Step 3: Cross multiply
   72,499x = 159,712 × 159,712
4. Step 4: Simplify right side
   72,499x = 25,507,922,944
5. Step 5: Solve for x
   x = 25,507,922,944/72,499
6. Step 6: Final answer
   x = 351,838.27