Finding the Third Proportional to 711,248 and 1,678,960

Step by Step Solution

1. Step 1: Write the proportion equation
   711,248 : 1,678,960 = 1,678,960 : x
2. Step 2: Convert to fraction form
   711,248/1,678,960 = 1,678,960/x
3. Step 3: Cross multiply
   711,248x = 1,678,960 × 1,678,960
4. Step 4: Simplify right side
   711,248x = 2,818,906,681,600
5. Step 5: Solve for x
   x = 2,818,906,681,600/711,248
6. Step 6: Final answer
   x = 3,963,324.58