Finding the Third Proportional to 78,710.50 and 169,859.25

Step by Step Solution

1. Step 1: Write the proportion equation
   78,710.50 : 169,859.25 = 169,859.25 : x
2. Step 2: Convert to fraction form
   78,710.50/169,859.25 = 169,859.25/x
3. Step 3: Cross multiply
   78,710.50x = 169,859.25 × 169,859.25
4. Step 4: Simplify right side
   78,710.50x = 28,852,164,810.56
5. Step 5: Solve for x
   x = 28,852,164,810.56/78,710.50
6. Step 6: Final answer
   x = 366,560.56