Finding the Third Proportional to 646,381 and 1,396,010

Step by Step Solution

1. Step 1: Write the proportion equation
   646,381 : 1,396,010 = 1,396,010 : x
2. Step 2: Convert to fraction form
   646,381/1,396,010 = 1,396,010/x
3. Step 3: Cross multiply
   646,381x = 1,396,010 × 1,396,010
4. Step 4: Simplify right side
   646,381x = 1,948,843,920,100
5. Step 5: Solve for x
   x = 1,948,843,920,100/646,381
6. Step 6: Final answer
   x = 3,015,008.05