Finding the Third Proportional to 672,894 and 1,421,604

Step by Step Solution

1. Step 1: Write the proportion equation
   672,894 : 1,421,604 = 1,421,604 : x
2. Step 2: Convert to fraction form
   672,894/1,421,604 = 1,421,604/x
3. Step 3: Cross multiply
   672,894x = 1,421,604 × 1,421,604
4. Step 4: Simplify right side
   672,894x = 2,020,957,932,816
5. Step 5: Solve for x
   x = 2,020,957,932,816/672,894
6. Step 6: Final answer
   x = 3,003,382.31