Finding the Third Proportional to 851,447 and 1,309,124

Step by Step Solution

1. Step 1: Write the proportion equation
   851,447 : 1,309,124 = 1,309,124 : x
2. Step 2: Convert to fraction form
   851,447/1,309,124 = 1,309,124/x
3. Step 3: Cross multiply
   851,447x = 1,309,124 × 1,309,124
4. Step 4: Simplify right side
   851,447x = 1,713,805,647,376
5. Step 5: Solve for x
   x = 1,713,805,647,376/851,447
6. Step 6: Final answer
   x = 2,012,815.42