Finding the Third Proportional to 163,410 and 222,778.50

Step by Step Solution

1. Step 1: Write the proportion equation
   163,410 : 222,778.50 = 222,778.50 : x
2. Step 2: Convert to fraction form
   163,410/222,778.50 = 222,778.50/x
3. Step 3: Cross multiply
   163,410x = 222,778.50 × 222,778.50
4. Step 4: Simplify right side
   163,410x = 49,630,260,062.25
5. Step 5: Solve for x
   x = 49,630,260,062.25/163,410
6. Step 6: Final answer
   x = 303,716.17