Finding the Third Proportional to 78,579 and 169,710

Step by Step Solution

1. Step 1: Write the proportion equation
   78,579 : 169,710 = 169,710 : x
2. Step 2: Convert to fraction form
   78,579/169,710 = 169,710/x
3. Step 3: Cross multiply
   78,579x = 169,710 × 169,710
4. Step 4: Simplify right side
   78,579x = 28,801,484,100
5. Step 5: Solve for x
   x = 28,801,484,100/78,579
6. Step 6: Final answer
   x = 366,529.02