Finding the Third Proportional to 878,294 and 1,917,236

Step by Step Solution

1. Step 1: Write the proportion equation
   878,294 : 1,917,236 = 1,917,236 : x
2. Step 2: Convert to fraction form
   878,294/1,917,236 = 1,917,236/x
3. Step 3: Cross multiply
   878,294x = 1,917,236 × 1,917,236
4. Step 4: Simplify right side
   878,294x = 3,675,793,879,696
5. Step 5: Solve for x
   x = 3,675,793,879,696/878,294
6. Step 6: Final answer
   x = 4,185,151.99