Finding the Third Proportional to 866,352 and 1,338,878

Step by Step Solution

1. Step 1: Write the proportion equation
   866,352 : 1,338,878 = 1,338,878 : x
2. Step 2: Convert to fraction form
   866,352/1,338,878 = 1,338,878/x
3. Step 3: Cross multiply
   866,352x = 1,338,878 × 1,338,878
4. Step 4: Simplify right side
   866,352x = 1,792,594,298,884
5. Step 5: Solve for x
   x = 1,792,594,298,884/866,352
6. Step 6: Final answer
   x = 2,069,129.29