Finding the Third Proportional to 861,700 and 1,363,828

Step by Step Solution

1. Step 1: Write the proportion equation
   861,700 : 1,363,828 = 1,363,828 : x
2. Step 2: Convert to fraction form
   861,700/1,363,828 = 1,363,828/x
3. Step 3: Cross multiply
   861,700x = 1,363,828 × 1,363,828
4. Step 4: Simplify right side
   861,700x = 1,860,026,813,584
5. Step 5: Solve for x
   x = 1,860,026,813,584/861,700
6. Step 6: Final answer
   x = 2,158,554.97