Finding the Third Proportional to 868,516 and 1,913,724

Step by Step Solution

1. Step 1: Write the proportion equation
   868,516 : 1,913,724 = 1,913,724 : x
2. Step 2: Convert to fraction form
   868,516/1,913,724 = 1,913,724/x
3. Step 3: Cross multiply
   868,516x = 1,913,724 × 1,913,724
4. Step 4: Simplify right side
   868,516x = 3,662,339,548,176
5. Step 5: Solve for x
   x = 3,662,339,548,176/868,516
6. Step 6: Final answer
   x = 4,216,778.45