Finding the Third Proportional to 623,391 and 1,363,422

Step by Step Solution

1. Step 1: Write the proportion equation
   623,391 : 1,363,422 = 1,363,422 : x
2. Step 2: Convert to fraction form
   623,391/1,363,422 = 1,363,422/x
3. Step 3: Cross multiply
   623,391x = 1,363,422 × 1,363,422
4. Step 4: Simplify right side
   623,391x = 1,858,919,550,084
5. Step 5: Solve for x
   x = 1,858,919,550,084/623,391
6. Step 6: Final answer
   x = 2,981,948.01