Finding the Third Proportional to 78,124 and 169,208

Step by Step Solution

1. Step 1: Write the proportion equation
   78,124 : 169,208 = 169,208 : x
2. Step 2: Convert to fraction form
   78,124/169,208 = 169,208/x
3. Step 3: Cross multiply
   78,124x = 169,208 × 169,208
4. Step 4: Simplify right side
   78,124x = 28,631,347,264
5. Step 5: Solve for x
   x = 28,631,347,264/78,124
6. Step 6: Final answer
   x = 366,485.94