Finding the Third Proportional to 1,661,816 and 2,713,328

Step by Step Solution

1. Step 1: Write the proportion equation
   1,661,816 : 2,713,328 = 2,713,328 : x
2. Step 2: Convert to fraction form
   1,661,816/2,713,328 = 2,713,328/x
3. Step 3: Cross multiply
   1,661,816x = 2,713,328 × 2,713,328
4. Step 4: Simplify right side
   1,661,816x = 7,362,148,835,584
5. Step 5: Solve for x
   x = 7,362,148,835,584/1,661,816
6. Step 6: Final answer
   x = 4,430,182.91