Finding the Third Proportional to 554,876 and 1,210,298

Step by Step Solution

1. Step 1: Write the proportion equation
   554,876 : 1,210,298 = 1,210,298 : x
2. Step 2: Convert to fraction form
   554,876/1,210,298 = 1,210,298/x
3. Step 3: Cross multiply
   554,876x = 1,210,298 × 1,210,298
4. Step 4: Simplify right side
   554,876x = 1,464,821,248,804
5. Step 5: Solve for x
   x = 1,464,821,248,804/554,876
6. Step 6: Final answer
   x = 2,639,907.38