Finding the Third Proportional to 590,877 and 1,288,665

Step by Step Solution

1. Step 1: Write the proportion equation
   590,877 : 1,288,665 = 1,288,665 : x
2. Step 2: Convert to fraction form
   590,877/1,288,665 = 1,288,665/x
3. Step 3: Cross multiply
   590,877x = 1,288,665 × 1,288,665
4. Step 4: Simplify right side
   590,877x = 1,660,657,482,225
5. Step 5: Solve for x
   x = 1,660,657,482,225/590,877
6. Step 6: Final answer
   x = 2,810,496.06