Finding the Third Proportional to 1,047,298 and 1,638,339

Step by Step Solution

1. Step 1: Write the proportion equation
   1,047,298 : 1,638,339 = 1,638,339 : x
2. Step 2: Convert to fraction form
   1,047,298/1,638,339 = 1,638,339/x
3. Step 3: Cross multiply
   1,047,298x = 1,638,339 × 1,638,339
4. Step 4: Simplify right side
   1,047,298x = 2,684,154,678,921
5. Step 5: Solve for x
   x = 2,684,154,678,921/1,047,298
6. Step 6: Final answer
   x = 2,562,933.07