Finding the Third Proportional to 1,291,724 and 2,829,690

Step by Step Solution

1. Step 1: Write the proportion equation
   1,291,724 : 2,829,690 = 2,829,690 : x
2. Step 2: Convert to fraction form
   1,291,724/2,829,690 = 2,829,690/x
3. Step 3: Cross multiply
   1,291,724x = 2,829,690 × 2,829,690
4. Step 4: Simplify right side
   1,291,724x = 8,007,145,496,100
5. Step 5: Solve for x
   x = 8,007,145,496,100/1,291,724
6. Step 6: Final answer
   x = 6,198,805.24