Finding the Third Proportional to 404,768 and 871,831.50

Step by Step Solution

1. Step 1: Write the proportion equation
   404,768 : 871,831.50 = 871,831.50 : x
2. Step 2: Convert to fraction form
   404,768/871,831.50 = 871,831.50/x
3. Step 3: Cross multiply
   404,768x = 871,831.50 × 871,831.50
4. Step 4: Simplify right side
   404,768x = 760,090,164,392.25
5. Step 5: Solve for x
   x = 760,090,164,392.25/404,768
6. Step 6: Final answer
   x = 1,877,841.54