Finding the Third Proportional to 1,308,609 and 1,919,781

Step by Step Solution

1. Step 1: Write the proportion equation
   1,308,609 : 1,919,781 = 1,919,781 : x
2. Step 2: Convert to fraction form
   1,308,609/1,919,781 = 1,919,781/x
3. Step 3: Cross multiply
   1,308,609x = 1,919,781 × 1,919,781
4. Step 4: Simplify right side
   1,308,609x = 3,685,559,087,961
5. Step 5: Solve for x
   x = 3,685,559,087,961/1,308,609
6. Step 6: Final answer
   x = 2,816,394.42