Finding the Third Proportional to 588,128 and 1,275,815

Step by Step Solution

1. Step 1: Write the proportion equation
   588,128 : 1,275,815 = 1,275,815 : x
2. Step 2: Convert to fraction form
   588,128/1,275,815 = 1,275,815/x
3. Step 3: Cross multiply
   588,128x = 1,275,815 × 1,275,815
4. Step 4: Simplify right side
   588,128x = 1,627,703,914,225
5. Step 5: Solve for x
   x = 1,627,703,914,225/588,128
6. Step 6: Final answer
   x = 2,767,601.46