Finding the Third Proportional to 868,500 and 1,913,694

Step by Step Solution

1. Step 1: Write the proportion equation
   868,500 : 1,913,694 = 1,913,694 : x
2. Step 2: Convert to fraction form
   868,500/1,913,694 = 1,913,694/x
3. Step 3: Cross multiply
   868,500x = 1,913,694 × 1,913,694
4. Step 4: Simplify right side
   868,500x = 3,662,224,725,636
5. Step 5: Solve for x
   x = 3,662,224,725,636/868,500
6. Step 6: Final answer
   x = 4,216,723.92