Finding the Third Proportional to 876,378 and 1,386,522

Step by Step Solution

1. Step 1: Write the proportion equation
   876,378 : 1,386,522 = 1,386,522 : x
2. Step 2: Convert to fraction form
   876,378/1,386,522 = 1,386,522/x
3. Step 3: Cross multiply
   876,378x = 1,386,522 × 1,386,522
4. Step 4: Simplify right side
   876,378x = 1,922,443,256,484
5. Step 5: Solve for x
   x = 1,922,443,256,484/876,378
6. Step 6: Final answer
   x = 2,193,623.36