Finding the Third Proportional to 222,768 and 345,248

Step by Step Solution

1. Step 1: Write the proportion equation
   222,768 : 345,248 = 345,248 : x
2. Step 2: Convert to fraction form
   222,768/345,248 = 345,248/x
3. Step 3: Cross multiply
   222,768x = 345,248 × 345,248
4. Step 4: Simplify right side
   222,768x = 119,196,181,504
5. Step 5: Solve for x
   x = 119,196,181,504/222,768
6. Step 6: Final answer
   x = 535,068.69