Finding the Third Proportional to 391,382 and 849,682

Step by Step Solution

1. Step 1: Write the proportion equation
   391,382 : 849,682 = 849,682 : x
2. Step 2: Convert to fraction form
   391,382/849,682 = 849,682/x
3. Step 3: Cross multiply
   391,382x = 849,682 × 849,682
4. Step 4: Simplify right side
   391,382x = 721,959,501,124
5. Step 5: Solve for x
   x = 721,959,501,124/391,382
6. Step 6: Final answer
   x = 1,844,641.56