Finding the Third Proportional to 1,209,865 and 1,857,097

Step by Step Solution

1. Step 1: Write the proportion equation
   1,209,865 : 1,857,097 = 1,857,097 : x
2. Step 2: Convert to fraction form
   1,209,865/1,857,097 = 1,857,097/x
3. Step 3: Cross multiply
   1,209,865x = 1,857,097 × 1,857,097
4. Step 4: Simplify right side
   1,209,865x = 3,448,809,267,409
5. Step 5: Solve for x
   x = 3,448,809,267,409/1,209,865
6. Step 6: Final answer
   x = 2,850,573.63