Finding the Third Proportional to 851,465 and 1,309,142

Step by Step Solution

1. Step 1: Write the proportion equation
   851,465 : 1,309,142 = 1,309,142 : x
2. Step 2: Convert to fraction form
   851,465/1,309,142 = 1,309,142/x
3. Step 3: Cross multiply
   851,465x = 1,309,142 × 1,309,142
4. Step 4: Simplify right side
   851,465x = 1,713,852,776,164
5. Step 5: Solve for x
   x = 1,713,852,776,164/851,465
6. Step 6: Final answer
   x = 2,012,828.22