Finding the Third Proportional to 1,249,724 and 2,689,312

Step by Step Solution

1. Step 1: Write the proportion equation
   1,249,724 : 2,689,312 = 2,689,312 : x
2. Step 2: Convert to fraction form
   1,249,724/2,689,312 = 2,689,312/x
3. Step 3: Cross multiply
   1,249,724x = 2,689,312 × 2,689,312
4. Step 4: Simplify right side
   1,249,724x = 7,232,399,033,344
5. Step 5: Solve for x
   x = 7,232,399,033,344/1,249,724
6. Step 6: Final answer
   x = 5,787,197.04