Finding the Third Proportional to 753,916 and 1,638,800

Step by Step Solution

1. Step 1: Write the proportion equation
   753,916 : 1,638,800 = 1,638,800 : x
2. Step 2: Convert to fraction form
   753,916/1,638,800 = 1,638,800/x
3. Step 3: Cross multiply
   753,916x = 1,638,800 × 1,638,800
4. Step 4: Simplify right side
   753,916x = 2,685,665,440,000
5. Step 5: Solve for x
   x = 2,685,665,440,000/753,916
6. Step 6: Final answer
   x = 3,562,287.36