Finding the Third Proportional to 855,680 and 1,315,354

Step by Step Solution

1. Step 1: Write the proportion equation
   855,680 : 1,315,354 = 1,315,354 : x
2. Step 2: Convert to fraction form
   855,680/1,315,354 = 1,315,354/x
3. Step 3: Cross multiply
   855,680x = 1,315,354 × 1,315,354
4. Step 4: Simplify right side
   855,680x = 1,730,156,145,316
5. Step 5: Solve for x
   x = 1,730,156,145,316/855,680
6. Step 6: Final answer
   x = 2,021,966.33