Finding the Third Proportional to 168,111 and 260,293.50

Step by Step Solution

1. Step 1: Write the proportion equation
   168,111 : 260,293.50 = 260,293.50 : x
2. Step 2: Convert to fraction form
   168,111/260,293.50 = 260,293.50/x
3. Step 3: Cross multiply
   168,111x = 260,293.50 × 260,293.50
4. Step 4: Simplify right side
   168,111x = 67,752,706,142.25
5. Step 5: Solve for x
   x = 67,752,706,142.25/168,111
6. Step 6: Final answer
   x = 403,023.63