Finding the Third Proportional to 1,010,560 and 2,161,140

Step by Step Solution

1. Step 1: Write the proportion equation
   1,010,560 : 2,161,140 = 2,161,140 : x
2. Step 2: Convert to fraction form
   1,010,560/2,161,140 = 2,161,140/x
3. Step 3: Cross multiply
   1,010,560x = 2,161,140 × 2,161,140
4. Step 4: Simplify right side
   1,010,560x = 4,670,526,099,600
5. Step 5: Solve for x
   x = 4,670,526,099,600/1,010,560
6. Step 6: Final answer
   x = 4,621,720.73