Finding the Third Proportional to 710,784 and 1,677,906

Step by Step Solution

1. Step 1: Write the proportion equation
   710,784 : 1,677,906 = 1,677,906 : x
2. Step 2: Convert to fraction form
   710,784/1,677,906 = 1,677,906/x
3. Step 3: Cross multiply
   710,784x = 1,677,906 × 1,677,906
4. Step 4: Simplify right side
   710,784x = 2,815,368,544,836
5. Step 5: Solve for x
   x = 2,815,368,544,836/710,784
6. Step 6: Final answer
   x = 3,960,934.05