Finding the Third Proportional to 868,493 and 1,913,680

Step by Step Solution

1. Step 1: Write the proportion equation
   868,493 : 1,913,680 = 1,913,680 : x
2. Step 2: Convert to fraction form
   868,493/1,913,680 = 1,913,680/x
3. Step 3: Cross multiply
   868,493x = 1,913,680 × 1,913,680
4. Step 4: Simplify right side
   868,493x = 3,662,171,142,400
5. Step 5: Solve for x
   x = 3,662,171,142,400/868,493
6. Step 6: Final answer
   x = 4,216,696.21