Finding the Third Proportional to 887,208 and 1,389,900

Step by Step Solution

1. Step 1: Write the proportion equation
   887,208 : 1,389,900 = 1,389,900 : x
2. Step 2: Convert to fraction form
   887,208/1,389,900 = 1,389,900/x
3. Step 3: Cross multiply
   887,208x = 1,389,900 × 1,389,900
4. Step 4: Simplify right side
   887,208x = 1,931,822,010,000
5. Step 5: Solve for x
   x = 1,931,822,010,000/887,208
6. Step 6: Final answer
   x = 2,177,417.26