Finding the Third Proportional to 1,156,288 and 1,779,488

Step by Step Solution

1. Step 1: Write the proportion equation
   1,156,288 : 1,779,488 = 1,779,488 : x
2. Step 2: Convert to fraction form
   1,156,288/1,779,488 = 1,779,488/x
3. Step 3: Cross multiply
   1,156,288x = 1,779,488 × 1,779,488
4. Step 4: Simplify right side
   1,156,288x = 3,166,577,542,144
5. Step 5: Solve for x
   x = 3,166,577,542,144/1,156,288
6. Step 6: Final answer
   x = 2,738,571.66