Finding the Third Proportional to 868,554 and 1,913,796

Step by Step Solution

1. Step 1: Write the proportion equation
   868,554 : 1,913,796 = 1,913,796 : x
2. Step 2: Convert to fraction form
   868,554/1,913,796 = 1,913,796/x
3. Step 3: Cross multiply
   868,554x = 1,913,796 × 1,913,796
4. Step 4: Simplify right side
   868,554x = 3,662,615,129,616
5. Step 5: Solve for x
   x = 3,662,615,129,616/868,554
6. Step 6: Final answer
   x = 4,216,911.25