Finding the Third Proportional to 887,200 and 1,389,942

Step by Step Solution

1. Step 1: Write the proportion equation
   887,200 : 1,389,942 = 1,389,942 : x
2. Step 2: Convert to fraction form
   887,200/1,389,942 = 1,389,942/x
3. Step 3: Cross multiply
   887,200x = 1,389,942 × 1,389,942
4. Step 4: Simplify right side
   887,200x = 1,931,938,763,364
5. Step 5: Solve for x
   x = 1,931,938,763,364/887,200
6. Step 6: Final answer
   x = 2,177,568.49