Finding the Third Proportional to 1,015,800 and 2,166,600

Step by Step Solution

1. Step 1: Write the proportion equation
   1,015,800 : 2,166,600 = 2,166,600 : x
2. Step 2: Convert to fraction form
   1,015,800/2,166,600 = 2,166,600/x
3. Step 3: Cross multiply
   1,015,800x = 2,166,600 × 2,166,600
4. Step 4: Simplify right side
   1,015,800x = 4,694,155,560,000
5. Step 5: Solve for x
   x = 4,694,155,560,000/1,015,800
6. Step 6: Final answer
   x = 4,621,141.52