Finding the Third Proportional to 1,010,566 and 2,161,156

Step by Step Solution

1. Step 1: Write the proportion equation
   1,010,566 : 2,161,156 = 2,161,156 : x
2. Step 2: Convert to fraction form
   1,010,566/2,161,156 = 2,161,156/x
3. Step 3: Cross multiply
   1,010,566x = 2,161,156 × 2,161,156
4. Step 4: Simplify right side
   1,010,566x = 4,670,595,256,336
5. Step 5: Solve for x
   x = 4,670,595,256,336/1,010,566
6. Step 6: Final answer
   x = 4,621,761.72