Finding the Third Proportional to 123,231 and 265,141.50

Step by Step Solution

1. Step 1: Write the proportion equation
   123,231 : 265,141.50 = 265,141.50 : x
2. Step 2: Convert to fraction form
   123,231/265,141.50 = 265,141.50/x
3. Step 3: Cross multiply
   123,231x = 265,141.50 × 265,141.50
4. Step 4: Simplify right side
   123,231x = 70,300,015,022.25
5. Step 5: Solve for x
   x = 70,300,015,022.25/123,231
6. Step 6: Final answer
   x = 570,473.46