Finding the Third Proportional to 876,870 and 1,396,359

Step by Step Solution

1. Step 1: Write the proportion equation
   876,870 : 1,396,359 = 1,396,359 : x
2. Step 2: Convert to fraction form
   876,870/1,396,359 = 1,396,359/x
3. Step 3: Cross multiply
   876,870x = 1,396,359 × 1,396,359
4. Step 4: Simplify right side
   876,870x = 1,949,818,456,881
5. Step 5: Solve for x
   x = 1,949,818,456,881/876,870
6. Step 6: Final answer
   x = 2,223,611.77