Finding the Third Proportional to 746,706 and 1,638,564

Step by Step Solution

1. Step 1: Write the proportion equation
   746,706 : 1,638,564 = 1,638,564 : x
2. Step 2: Convert to fraction form
   746,706/1,638,564 = 1,638,564/x
3. Step 3: Cross multiply
   746,706x = 1,638,564 × 1,638,564
4. Step 4: Simplify right side
   746,706x = 2,684,891,982,096
5. Step 5: Solve for x
   x = 2,684,891,982,096/746,706
6. Step 6: Final answer
   x = 3,595,648.06