Finding the Third Proportional to 168,191 and 260,693.50

Step by Step Solution

1. Step 1: Write the proportion equation
   168,191 : 260,693.50 = 260,693.50 : x
2. Step 2: Convert to fraction form
   168,191/260,693.50 = 260,693.50/x
3. Step 3: Cross multiply
   168,191x = 260,693.50 × 260,693.50
4. Step 4: Simplify right side
   168,191x = 67,961,100,942.25
5. Step 5: Solve for x
   x = 67,961,100,942.25/168,191
6. Step 6: Final answer
   x = 404,070.97