Finding the Third Proportional to 168,606 and 361,129.50

Step by Step Solution

1. Step 1: Write the proportion equation
   168,606 : 361,129.50 = 361,129.50 : x
2. Step 2: Convert to fraction form
   168,606/361,129.50 = 361,129.50/x
3. Step 3: Cross multiply
   168,606x = 361,129.50 × 361,129.50
4. Step 4: Simplify right side
   168,606x = 130,414,515,770.25
5. Step 5: Solve for x
   x = 130,414,515,770.25/168,606
6. Step 6: Final answer
   x = 773,486.80