Finding the Third Proportional to 1,609,913 and 2,178,674

Step by Step Solution

1. Step 1: Write the proportion equation
   1,609,913 : 2,178,674 = 2,178,674 : x
2. Step 2: Convert to fraction form
   1,609,913/2,178,674 = 2,178,674/x
3. Step 3: Cross multiply
   1,609,913x = 2,178,674 × 2,178,674
4. Step 4: Simplify right side
   1,609,913x = 4,746,620,398,276
5. Step 5: Solve for x
   x = 4,746,620,398,276/1,609,913
6. Step 6: Final answer
   x = 2,948,370.75