Finding the Third Proportional to 887,036 and 1,389,620

Step by Step Solution

1. Step 1: Write the proportion equation
   887,036 : 1,389,620 = 1,389,620 : x
2. Step 2: Convert to fraction form
   887,036/1,389,620 = 1,389,620/x
3. Step 3: Cross multiply
   887,036x = 1,389,620 × 1,389,620
4. Step 4: Simplify right side
   887,036x = 1,931,043,744,400
5. Step 5: Solve for x
   x = 1,931,043,744,400/887,036
6. Step 6: Final answer
   x = 2,176,962.09