Finding the Third Proportional to 851,452 and 1,309,129

Step by Step Solution

1. Step 1: Write the proportion equation
   851,452 : 1,309,129 = 1,309,129 : x
2. Step 2: Convert to fraction form
   851,452/1,309,129 = 1,309,129/x
3. Step 3: Cross multiply
   851,452x = 1,309,129 × 1,309,129
4. Step 4: Simplify right side
   851,452x = 1,713,818,738,641
5. Step 5: Solve for x
   x = 1,713,818,738,641/851,452
6. Step 6: Final answer
   x = 2,012,818.97