Finding the Third Proportional to 155,979 and 222,886.50

Step by Step Solution

1. Step 1: Write the proportion equation
   155,979 : 222,886.50 = 222,886.50 : x
2. Step 2: Convert to fraction form
   155,979/222,886.50 = 222,886.50/x
3. Step 3: Cross multiply
   155,979x = 222,886.50 × 222,886.50
4. Step 4: Simplify right side
   155,979x = 49,678,391,882.25
5. Step 5: Solve for x
   x = 49,678,391,882.25/155,979
6. Step 6: Final answer
   x = 318,494.10