Finding the Third Proportional to 78,715.50 and 169,093.50

Step by Step Solution

1. Step 1: Write the proportion equation
   78,715.50 : 169,093.50 = 169,093.50 : x
2. Step 2: Convert to fraction form
   78,715.50/169,093.50 = 169,093.50/x
3. Step 3: Cross multiply
   78,715.50x = 169,093.50 × 169,093.50
4. Step 4: Simplify right side
   78,715.50x = 28,592,611,742.25
5. Step 5: Solve for x
   x = 28,592,611,742.25/78,715.50
6. Step 6: Final answer
   x = 363,239.92