Finding the Third Proportional to 852,689 and 1,231,887

Step by Step Solution

1. Step 1: Write the proportion equation
   852,689 : 1,231,887 = 1,231,887 : x
2. Step 2: Convert to fraction form
   852,689/1,231,887 = 1,231,887/x
3. Step 3: Cross multiply
   852,689x = 1,231,887 × 1,231,887
4. Step 4: Simplify right side
   852,689x = 1,517,545,580,769
5. Step 5: Solve for x
   x = 1,517,545,580,769/852,689
6. Step 6: Final answer
   x = 1,779,717.55