Finding the Third Proportional to 1,567,990 and 2,208,148

Step by Step Solution

1. Step 1: Write the proportion equation
   1,567,990 : 2,208,148 = 2,208,148 : x
2. Step 2: Convert to fraction form
   1,567,990/2,208,148 = 2,208,148/x
3. Step 3: Cross multiply
   1,567,990x = 2,208,148 × 2,208,148
4. Step 4: Simplify right side
   1,567,990x = 4,875,917,589,904
5. Step 5: Solve for x
   x = 4,875,917,589,904/1,567,990
6. Step 6: Final answer
   x = 3,109,661.15