Finding the Third Proportional to 851,156 and 1,259,904

Step by Step Solution

1. Step 1: Write the proportion equation
   851,156 : 1,259,904 = 1,259,904 : x
2. Step 2: Convert to fraction form
   851,156/1,259,904 = 1,259,904/x
3. Step 3: Cross multiply
   851,156x = 1,259,904 × 1,259,904
4. Step 4: Simplify right side
   851,156x = 1,587,358,089,216
5. Step 5: Solve for x
   x = 1,587,358,089,216/851,156
6. Step 6: Final answer
   x = 1,864,943.78