Finding the Third Proportional to 1,357,618 and 2,680,970

Step by Step Solution

1. Step 1: Write the proportion equation
   1,357,618 : 2,680,970 = 2,680,970 : x
2. Step 2: Convert to fraction form
   1,357,618/2,680,970 = 2,680,970/x
3. Step 3: Cross multiply
   1,357,618x = 2,680,970 × 2,680,970
4. Step 4: Simplify right side
   1,357,618x = 7,187,600,140,900
5. Step 5: Solve for x
   x = 7,187,600,140,900/1,357,618
6. Step 6: Final answer
   x = 5,294,272.87