Finding the Third Proportional to 851,396 and 1,318,404

Step by Step Solution

1. Step 1: Write the proportion equation
   851,396 : 1,318,404 = 1,318,404 : x
2. Step 2: Convert to fraction form
   851,396/1,318,404 = 1,318,404/x
3. Step 3: Cross multiply
   851,396x = 1,318,404 × 1,318,404
4. Step 4: Simplify right side
   851,396x = 1,738,189,107,216
5. Step 5: Solve for x
   x = 1,738,189,107,216/851,396
6. Step 6: Final answer
   x = 2,041,575.37