Finding the Third Proportional to 123,231 and 252,289.50

Step by Step Solution

1. Step 1: Write the proportion equation
   123,231 : 252,289.50 = 252,289.50 : x
2. Step 2: Convert to fraction form
   123,231/252,289.50 = 252,289.50/x
3. Step 3: Cross multiply
   123,231x = 252,289.50 × 252,289.50
4. Step 4: Simplify right side
   123,231x = 63,649,991,810.25
5. Step 5: Solve for x
   x = 63,649,991,810.25/123,231
6. Step 6: Final answer
   x = 516,509.58