Finding the Third Proportional to 340,831.50 and 716,907

Step by Step Solution

1. Step 1: Write the proportion equation
   340,831.50 : 716,907 = 716,907 : x
2. Step 2: Convert to fraction form
   340,831.50/716,907 = 716,907/x
3. Step 3: Cross multiply
   340,831.50x = 716,907 × 716,907
4. Step 4: Simplify right side
   340,831.50x = 513,955,646,649
5. Step 5: Solve for x
   x = 513,955,646,649/340,831.50
6. Step 6: Final answer
   x = 1,507,946.44