Finding the Third Proportional to 1,047,307 and 1,638,353

Step by Step Solution

1. Step 1: Write the proportion equation
   1,047,307 : 1,638,353 = 1,638,353 : x
2. Step 2: Convert to fraction form
   1,047,307/1,638,353 = 1,638,353/x
3. Step 3: Cross multiply
   1,047,307x = 1,638,353 × 1,638,353
4. Step 4: Simplify right side
   1,047,307x = 2,684,200,552,609
5. Step 5: Solve for x
   x = 2,684,200,552,609/1,047,307
6. Step 6: Final answer
   x = 2,562,954.85