Finding the Third Proportional to 1,286,387 and 1,891,060

Step by Step Solution

1. Step 1: Write the proportion equation
   1,286,387 : 1,891,060 = 1,891,060 : x
2. Step 2: Convert to fraction form
   1,286,387/1,891,060 = 1,891,060/x
3. Step 3: Cross multiply
   1,286,387x = 1,891,060 × 1,891,060
4. Step 4: Simplify right side
   1,286,387x = 3,576,107,923,600
5. Step 5: Solve for x
   x = 3,576,107,923,600/1,286,387
6. Step 6: Final answer
   x = 2,779,962.74