Finding the Third Proportional to 78,230 and 168,253

Step by Step Solution

1. Step 1: Write the proportion equation
   78,230 : 168,253 = 168,253 : x
2. Step 2: Convert to fraction form
   78,230/168,253 = 168,253/x
3. Step 3: Cross multiply
   78,230x = 168,253 × 168,253
4. Step 4: Simplify right side
   78,230x = 28,309,072,009
5. Step 5: Solve for x
   x = 28,309,072,009/78,230
6. Step 6: Final answer
   x = 361,869.77