Finding the Third Proportional to 168,388 and 360,123

Step by Step Solution

1. Step 1: Write the proportion equation
   168,388 : 360,123 = 360,123 : x
2. Step 2: Convert to fraction form
   168,388/360,123 = 360,123/x
3. Step 3: Cross multiply
   168,388x = 360,123 × 360,123
4. Step 4: Simplify right side
   168,388x = 129,688,575,129
5. Step 5: Solve for x
   x = 129,688,575,129/168,388
6. Step 6: Final answer
   x = 770,177.06