Finding the Third Proportional to 123,555 and 250,548.50

Step by Step Solution

1. Step 1: Write the proportion equation
   123,555 : 250,548.50 = 250,548.50 : x
2. Step 2: Convert to fraction form
   123,555/250,548.50 = 250,548.50/x
3. Step 3: Cross multiply
   123,555x = 250,548.50 × 250,548.50
4. Step 4: Simplify right side
   123,555x = 62,774,550,852.25
5. Step 5: Solve for x
   x = 62,774,550,852.25/123,555
6. Step 6: Final answer
   x = 508,069.69