Finding the Third Proportional to 878,998.50 and 1,865,916

Step by Step Solution

1. Step 1: Write the proportion equation
   878,998.50 : 1,865,916 = 1,865,916 : x
2. Step 2: Convert to fraction form
   878,998.50/1,865,916 = 1,865,916/x
3. Step 3: Cross multiply
   878,998.50x = 1,865,916 × 1,865,916
4. Step 4: Simplify right side
   878,998.50x = 3,481,642,519,056
5. Step 5: Solve for x
   x = 3,481,642,519,056/878,998.50
6. Step 6: Final answer
   x = 3,960,919.75