Finding the Third Proportional to 887,724 and 1,256,109

Step by Step Solution

1. Step 1: Write the proportion equation
   887,724 : 1,256,109 = 1,256,109 : x
2. Step 2: Convert to fraction form
   887,724/1,256,109 = 1,256,109/x
3. Step 3: Cross multiply
   887,724x = 1,256,109 × 1,256,109
4. Step 4: Simplify right side
   887,724x = 1,577,809,819,881
5. Step 5: Solve for x
   x = 1,577,809,819,881/887,724
6. Step 6: Final answer
   x = 1,777,365.28