Finding the Third Proportional to 225,378 and 350,986.50

Step by Step Solution

1. Step 1: Write the proportion equation
   225,378 : 350,986.50 = 350,986.50 : x
2. Step 2: Convert to fraction form
   225,378/350,986.50 = 350,986.50/x
3. Step 3: Cross multiply
   225,378x = 350,986.50 × 350,986.50
4. Step 4: Simplify right side
   225,378x = 123,191,523,182.25
5. Step 5: Solve for x
   x = 123,191,523,182.25/225,378
6. Step 6: Final answer
   x = 546,599.59