Finding the Third Proportional to 330,507 and 713,488.50

Step by Step Solution

1. Step 1: Write the proportion equation
   330,507 : 713,488.50 = 713,488.50 : x
2. Step 2: Convert to fraction form
   330,507/713,488.50 = 713,488.50/x
3. Step 3: Cross multiply
   330,507x = 713,488.50 × 713,488.50
4. Step 4: Simplify right side
   330,507x = 509,065,839,632.25
5. Step 5: Solve for x
   x = 509,065,839,632.25/330,507
6. Step 6: Final answer
   x = 1,540,257.36