Finding the Third Proportional to 1,803,210 and 2,790,663

Step by Step Solution

1. Step 1: Write the proportion equation
   1,803,210 : 2,790,663 = 2,790,663 : x
2. Step 2: Convert to fraction form
   1,803,210/2,790,663 = 2,790,663/x
3. Step 3: Cross multiply
   1,803,210x = 2,790,663 × 2,790,663
4. Step 4: Simplify right side
   1,803,210x = 7,787,799,979,569
5. Step 5: Solve for x
   x = 7,787,799,979,569/1,803,210
6. Step 6: Final answer
   x = 4,318,853.59