Finding the Third Proportional to 851,731 and 1,309,165.50

Step by Step Solution

1. Step 1: Write the proportion equation
   851,731 : 1,309,165.50 = 1,309,165.50 : x
2. Step 2: Convert to fraction form
   851,731/1,309,165.50 = 1,309,165.50/x
3. Step 3: Cross multiply
   851,731x = 1,309,165.50 × 1,309,165.50
4. Step 4: Simplify right side
   851,731x = 1,713,914,306,390.25
5. Step 5: Solve for x
   x = 1,713,914,306,390.25/851,731
6. Step 6: Final answer
   x = 2,012,271.84