Finding the Third Proportional to 78,608.50 and 169,666.25

Step by Step Solution

1. Step 1: Write the proportion equation
   78,608.50 : 169,666.25 = 169,666.25 : x
2. Step 2: Convert to fraction form
   78,608.50/169,666.25 = 169,666.25/x
3. Step 3: Cross multiply
   78,608.50x = 169,666.25 × 169,666.25
4. Step 4: Simplify right side
   78,608.50x = 28,786,636,389.06
5. Step 5: Solve for x
   x = 28,786,636,389.06/78,608.50
6. Step 6: Final answer
   x = 366,202.59