Finding the Third Proportional to 1,249,716 and 2,689,296

Step by Step Solution

1. Step 1: Write the proportion equation
   1,249,716 : 2,689,296 = 2,689,296 : x
2. Step 2: Convert to fraction form
   1,249,716/2,689,296 = 2,689,296/x
3. Step 3: Cross multiply
   1,249,716x = 2,689,296 × 2,689,296
4. Step 4: Simplify right side
   1,249,716x = 7,232,312,975,616
5. Step 5: Solve for x
   x = 7,232,312,975,616/1,249,716
6. Step 6: Final answer
   x = 5,787,165.22