Finding the Third Proportional to 307,240.50 and 670,762

Step by Step Solution

1. Step 1: Write the proportion equation
   307,240.50 : 670,762 = 670,762 : x
2. Step 2: Convert to fraction form
   307,240.50/670,762 = 670,762/x
3. Step 3: Cross multiply
   307,240.50x = 670,762 × 670,762
4. Step 4: Simplify right side
   307,240.50x = 449,921,660,644
5. Step 5: Solve for x
   x = 449,921,660,644/307,240.50
6. Step 6: Final answer
   x = 1,464,395.68