Finding the Third Proportional to 269,433 and 392,296.50

Step by Step Solution

1. Step 1: Write the proportion equation
   269,433 : 392,296.50 = 392,296.50 : x
2. Step 2: Convert to fraction form
   269,433/392,296.50 = 392,296.50/x
3. Step 3: Cross multiply
   269,433x = 392,296.50 × 392,296.50
4. Step 4: Simplify right side
   269,433x = 153,896,543,912.25
5. Step 5: Solve for x
   x = 153,896,543,912.25/269,433
6. Step 6: Final answer
   x = 571,186.69