Finding the Third Proportional to 826,380 and 1,263,315

Step by Step Solution

1. Step 1: Write the proportion equation
   826,380 : 1,263,315 = 1,263,315 : x
2. Step 2: Convert to fraction form
   826,380/1,263,315 = 1,263,315/x
3. Step 3: Cross multiply
   826,380x = 1,263,315 × 1,263,315
4. Step 4: Simplify right side
   826,380x = 1,595,964,789,225
5. Step 5: Solve for x
   x = 1,595,964,789,225/826,380
6. Step 6: Final answer
   x = 1,931,272.28