Finding the Third Proportional to 753,842 and 1,638,564

Step by Step Solution

1. Step 1: Write the proportion equation
   753,842 : 1,638,564 = 1,638,564 : x
2. Step 2: Convert to fraction form
   753,842/1,638,564 = 1,638,564/x
3. Step 3: Cross multiply
   753,842x = 1,638,564 × 1,638,564
4. Step 4: Simplify right side
   753,842x = 2,684,891,982,096
5. Step 5: Solve for x
   x = 2,684,891,982,096/753,842
6. Step 6: Final answer
   x = 3,561,611.03