Finding the Third Proportional to 612,171 and 1,298,448

Step by Step Solution

1. Step 1: Write the proportion equation
   612,171 : 1,298,448 = 1,298,448 : x
2. Step 2: Convert to fraction form
   612,171/1,298,448 = 1,298,448/x
3. Step 3: Cross multiply
   612,171x = 1,298,448 × 1,298,448
4. Step 4: Simplify right side
   612,171x = 1,685,967,208,704
5. Step 5: Solve for x
   x = 1,685,967,208,704/612,171
6. Step 6: Final answer
   x = 2,754,078.86