Finding the Third Proportional to 1,357,472 and 2,680,670

Step by Step Solution

1. Step 1: Write the proportion equation
   1,357,472 : 2,680,670 = 2,680,670 : x
2. Step 2: Convert to fraction form
   1,357,472/2,680,670 = 2,680,670/x
3. Step 3: Cross multiply
   1,357,472x = 2,680,670 × 2,680,670
4. Step 4: Simplify right side
   1,357,472x = 7,185,991,648,900
5. Step 5: Solve for x
   x = 7,185,991,648,900/1,357,472
6. Step 6: Final answer
   x = 5,293,657.36