Finding the Third Proportional to 1,306,056 and 1,978,800

Step by Step Solution

1. Step 1: Write the proportion equation
   1,306,056 : 1,978,800 = 1,978,800 : x
2. Step 2: Convert to fraction form
   1,306,056/1,978,800 = 1,978,800/x
3. Step 3: Cross multiply
   1,306,056x = 1,978,800 × 1,978,800
4. Step 4: Simplify right side
   1,306,056x = 3,915,649,440,000
5. Step 5: Solve for x
   x = 3,915,649,440,000/1,306,056
6. Step 6: Final answer
   x = 2,998,071.63