Finding the Third Proportional to 886,940 and 1,329,040

Step by Step Solution

1. Step 1: Write the proportion equation
   886,940 : 1,329,040 = 1,329,040 : x
2. Step 2: Convert to fraction form
   886,940/1,329,040 = 1,329,040/x
3. Step 3: Cross multiply
   886,940x = 1,329,040 × 1,329,040
4. Step 4: Simplify right side
   886,940x = 1,766,347,321,600
5. Step 5: Solve for x
   x = 1,766,347,321,600/886,940
6. Step 6: Final answer
   x = 1,991,507.12