Finding the Third Proportional to 623,436 and 1,363,536

Step by Step Solution

1. Step 1: Write the proportion equation
   623,436 : 1,363,536 = 1,363,536 : x
2. Step 2: Convert to fraction form
   623,436/1,363,536 = 1,363,536/x
3. Step 3: Cross multiply
   623,436x = 1,363,536 × 1,363,536
4. Step 4: Simplify right side
   623,436x = 1,859,230,423,296
5. Step 5: Solve for x
   x = 1,859,230,423,296/623,436
6. Step 6: Final answer
   x = 2,982,231.41