Finding the Third Proportional to 575,156 and 1,209,790

Step by Step Solution

1. Step 1: Write the proportion equation
   575,156 : 1,209,790 = 1,209,790 : x
2. Step 2: Convert to fraction form
   575,156/1,209,790 = 1,209,790/x
3. Step 3: Cross multiply
   575,156x = 1,209,790 × 1,209,790
4. Step 4: Simplify right side
   575,156x = 1,463,591,844,100
5. Step 5: Solve for x
   x = 1,463,591,844,100/575,156
6. Step 6: Final answer
   x = 2,544,686.74