Finding the Third Proportional to 155,908 and 222,913.50

Step by Step Solution

1. Step 1: Write the proportion equation
   155,908 : 222,913.50 = 222,913.50 : x
2. Step 2: Convert to fraction form
   155,908/222,913.50 = 222,913.50/x
3. Step 3: Cross multiply
   155,908x = 222,913.50 × 222,913.50
4. Step 4: Simplify right side
   155,908x = 49,690,428,482.25
5. Step 5: Solve for x
   x = 49,690,428,482.25/155,908
6. Step 6: Final answer
   x = 318,716.35