Finding the Third Proportional to 78,606 and 169,661.25

Step by Step Solution

1. Step 1: Write the proportion equation
   78,606 : 169,661.25 = 169,661.25 : x
2. Step 2: Convert to fraction form
   78,606/169,661.25 = 169,661.25/x
3. Step 3: Cross multiply
   78,606x = 169,661.25 × 169,661.25
4. Step 4: Simplify right side
   78,606x = 28,784,939,751.56
5. Step 5: Solve for x
   x = 28,784,939,751.56/78,606
6. Step 6: Final answer
   x = 366,192.65