Finding the Third Proportional to 980,546 and 2,118,648

Step by Step Solution

1. Step 1: Write the proportion equation
   980,546 : 2,118,648 = 2,118,648 : x
2. Step 2: Convert to fraction form
   980,546/2,118,648 = 2,118,648/x
3. Step 3: Cross multiply
   980,546x = 2,118,648 × 2,118,648
4. Step 4: Simplify right side
   980,546x = 4,488,669,347,904
5. Step 5: Solve for x
   x = 4,488,669,347,904/980,546
6. Step 6: Final answer
   x = 4,577,724.40