Finding the Third Proportional to 612,168 and 1,298,442

Step by Step Solution

1. Step 1: Write the proportion equation
   612,168 : 1,298,442 = 1,298,442 : x
2. Step 2: Convert to fraction form
   612,168/1,298,442 = 1,298,442/x
3. Step 3: Cross multiply
   612,168x = 1,298,442 × 1,298,442
4. Step 4: Simplify right side
   612,168x = 1,685,951,627,364
5. Step 5: Solve for x
   x = 1,685,951,627,364/612,168
6. Step 6: Final answer
   x = 2,754,066.90